SIST EN IEC 63563-11:2026

Qi specification version 2.0 - Part 11: Mpp communications protocol (IEC 63563-11:2025)

IEC 63563-11:2025 describes Magnetic power profile (MPP) which is a protocol extension that provides additional messages, new power states/modes, new power transfer contract elements, and aims to provide the following functionalities:
• Operating Frequency Negotiation
• Cloaking (Power Pause)
• Generic Information Exchange
• Simultaneous Data Stream Transactions
• Fast PTx to PRx communication
• Maximum Power and Power Control Profiles Determination
• Extended Power Negotiation
• Extended PTx/PRx Identification and Capabilities
• Extended Control Error Packets and Received Power Packets
• Power Transmitter Battery Level Reporting
• Ecosystem Scalability
MPP extension allows devices to operate under Restricted mode (no PTx communication) at 360kHz without performing any explicit negotiation with the Power Transmitter. This flexibility enables devices with limited resources (e.g., devices with no FSK support) to take advantage of the frequency change feature.

Qi Spezifikation Version 2.0 - Teil 11: Mpp Kommunikations-Protokoll (IEC 63563-11:2025)

Spécification Qi version 2.0 - Partie 11: Protocole de communications PPM (Profil de puissance magnétique) (IEC 63563-11:2025)

IEC 63563-11:2025 fournit une extension de protocole qui fournit des messages supplémentaires, de nouveaux états/modes de puissance, de nouveaux éléments de contrat de transfert de puissance, et vise à fournir les fonctionnalités suivantes:
• Négociation de la fréquence de fonctionnement
• Occultation (pause de puissance)
• Échange d'informations génériques
• Transactions simultanées de flux de données
• Communication rapide de PTx à PRx
• Détermination de la puissance maximale et des profils de contrôle de la puissance
• Négociation de pouvoir élargie
• Identification et capacités PTx/PRx étendues
• Paquets d'erreurs de contrôle étendus et paquets de puissance reçus
• Rapport sur le niveau de la batterie de l'émetteur de puissance
• Évolutivité de l'écosystème
L'extension MPP permet aux appareils de fonctionner en mode restreint (pas de communication PTx) à 360 kHz sans effectuer de négociation explicite avec l'émetteur de puissance. Cette flexibilité permet aux appareils disposant de ressources limitées (par exemple, les appareils ne prenant pas en charge la MDF) de tirer parti du phénomène de changement de fréquence.

Različica specifikacije Qi 2.0 - 11. del: Komunikacijski protokol Mpp (IEC 63563-11:2025)

General Information

• Status: Not Published
• Public Enquiry End Date: 21-Jul-2024
• ICS: 29.240.99 - Other equipment related to power transmission and distribution networks
• ICS: 33.160.99 - Other audio, video and audiovisual equipment
• ICS: 35.200 - Interface and interconnection equipment
• ICS: 35.240.99 - IT applications in other fields
• Technical Committee: AVM - Audio, video and multimedia systems and equipment
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 30-Jul-2025
• Due Date: 04-Oct-2025
• Ref Project: EN IEC 63563-11:2025 - Qi Specification version 2.0 - Part 11: MPP Communications Protocol

Standards Content (Sample)

SLOVENSKI STANDARD
oSIST prEN IEC 63563-11:2024
01-julij-2024
Različica specifikacije Qi 2.0 - 11. del: Mpp komunikacijski protokol (Hitri
postopek)
Qi specification version 2.0 - Part 11: Mpp communications protocol (Fast track)
Ta slovenski standard je istoveten z: prEN IEC 63563-11:2024
ICS:
29.240.99 Druga oprema v zvezi z Other equipment related to
omrežji za prenos in power transmission and
distribucijo električne energije distribution networks
33.160.99 Druga avdio, video in Other audio, video and
avdiovizuelna oprema audiovisual equipment
35.200 Vmesniška in povezovalna Interface and interconnection
oprema equipment
oSIST prEN IEC 63563-11:2024 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

oSIST prEN IEC 63563-11:2024
oSIST prEN IEC 63563-11:2024
100/4132/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 63563-11 ED1
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2024-05-03 2024-07-26
SUPERSEDES DOCUMENTS:
IEC TA 15 : WIRELESS POWER TRANSFER
SECRETARIAT: SECRETARY:
Korea, Republic of Mr Ockwoo Nam
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:

TC 106,TC 108
Other TC/SCs are requested to indicate their interest, if any,
in this CDV to the secretary.
FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE SAFETY
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING

This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of which they
are aware and to provide supporting documentation.
Recipients of this document are invited to submit, with their comments, notification of any relevant “In Some Countries”
clauses to be included should this proposal proceed. Recipients are reminded that the CDV stage is the final stage for
submitting ISC clauses. (SEE AC/22/2007 OR NEW GUIDANCE DOC).

TITLE:
Qi Specification version 2.0 - Part 11: MPP Communications Protocol (Fast track)

PROPOSED STABILITY DATE: 2029
NOTE FROM TC/SC OFFICERS:
This document is only in PDF format. IEC and WPC have agreed to use the pdf files as this is an adoption.

electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions.
You may not copy or "mirror" the file or printed version of the document, or any part of it, for any other purpose without
permission in writing from IEC.

oSIST prEN IEC 63563-11:2024
WIRELESS POWER
CONSORTIUM
Qi Specification
MPP Communications Protocol
Version 2.0
April 2023
oSIST prEN IEC 63563-11:2024
COPYRIGHT
© 2023 by the Wireless Power Consortium, Inc. All rights reserved.
The Qi Specification, Power Transmitter Reference Designs is published by the Wireless Power
Consortium and has been prepared by the members of the Wireless Power Consortium.
Reproduction in whole or in part is prohibited without express and prior written permission of the
Wireless Power Consortium.
DISCLAIMER
The information contained herein is believed to be accurate as of the date of publication,
but is provided “as is” and may contain errors. The Wireless Power Consortium makes no
warranty, express or implied, with respect to this document and its contents, including any
warranty of title, ownership, merchantability, or fitness for a particular use or purpose.
Neither the Wireless Power Consortium, nor any member of the Wireless Power
Consortium will be liable for errors in this document or for any damages, including indirect
or consequential, from use of or reliance on the accuracy of this document. For any further
explanation of the contents of this document, or in case of any perceived inconsistency or ambiguity
of interpretation, contact: [e-mail].
RELEASE HISTORY
Specification Version Release Date Description
2.0 April 2023 First release of this v2.0 specification.

oSIST prEN IEC 63563-11:2024
Contents
Contents 2
List of Tables 5
1 Introduction
1.1 Overview .  8
2 Magnetic Power Profile 10
2.1 Overview . 10
2.1.1 Restricted Mode . 10
2.1.2 Full Mode . 10
2.2 Power Receiver Requirements . 11
2.2.1 Amplitude Shift Keying (ASK) . 11
2.2.2 Startup Behavior . 11
2.2.3 Profile Activation . 13
2.3 Power Transmitter Requirements . 15
2.3.1 Frequency Shift Keying (FSK) . 15
2.3.2 Timings Override . 16
2.3.3 Startup Behavior . 16
2.4 Supporting EPP and MPP protocols . 19
2.4.1 MPP/EPP Support on PRx . 19
2.4.2 MPP/EPP Support on PTx . 20
3 Negotiation Phase 21
3.1 Overview . 21
3.2 Requirements . 21
3.2.1 Negotiation Phase Timings . 22
3.2.2 FSK Cycles . 22
3.2.3 Entering Negotiation Phase With Error Status . 22
3.2.4 Power Transfer Contract Extension . 23
3.3 Negotiation Phase - 128kHz . 24
3.3.1 Nominal negotiation flow . 24
3.3.2 Negotiation flow with PTx error status . 26
3.3.3 Frequency Selection . 27
3.4 Negotiation Phase - 360kHz . 27
3.4.1 PRx Extended Capabilities . 30
3.4.2 PTx Extended Capabilities . 30
3.4.3 Exchange Power Loss Accounting Parameters . 30

oSIST prEN IEC 63563-11:2024
3.4.4 Power Negotiation . 30
3.4.5 Retrieve PTx Extended ID . 30
3.4.6 Exchange Enabled Data Streams . 30
3.4.7 Power Control Profile . 30
3.4.8 Cloaking Duration . 30
3.4.9 MPP Proprietary Requests / Packets . 31
3.5 NFC Identification (Informative) . 32
4 Power Transfer Phase 33
4.1 Overview . 33
4.2 Extended Control Error Packet . 33
4.2.1 Handling . 33
4.2.2 PTx Response . 34
4.2.3 Example . 34
4.3 Power Loss Accounting Packet . 36
4.3.1 Handling . 36
4.3.2 PTx Response . 37
4.4 Control Status . 37
4.5 GET Request . 37
4.5.1 PRx Initiated . 37
4.5.2 PTx Initiated . 38
4.5.3 Examples . 38
4.6 MPP-Restricted to Full mode Transition . 39
4.6.1 Transition with power interruption . 40
4.6.2 Transition without power interruption . 40
5 Cloak Phase 43
5.1 Overview . 43
5.2 Cloak Ping Requirements . 43
5.3 Cloak Entry . 43
5.3.1 PRx Initiated . 44
5.3.2 PTx Initiated . 44
5.4 Cloak Exit . 45
5.5 Detect ping . 46
5.6 State Diagram . 46
5.7 Cloak Timings . 49
5.8 Examples. 50
6 Extended Data Streams 56
6.1 Overview . 56
6.2 Simultaneous Data Stream Extension . 56
6.2.1 Error Handling . 57
6.2.2 Timings . 57
6.2.3 Cloaking Compatibility . 57
6.3 Data Integrity Extension . 58
6.4 Examples. 58
7 Packets and Streams 67
7.1 Power Receiver data packets . 67
7.1.1 Cloak - CLOAK (0x18) . 69
7.1.2 Extended Control Error - XCE (0x19) . 70
Specific Request - SRQ (0x20) . 71
7.1.3
oSIST prEN IEC 63563-11:2024
7.1.4 Specific Request [Frequency Selection] - SRQ/freqsel (0x20) . 75
7.1.5 Specific Request [Power Level] - SRQ/egpl (0x20) . 76
7.1.6 Specific Request [Cloak Ping Delay - Low Byte] - SRQ/cloakl (0x20) . 77
7.1.7 Specific Request [Cloak Ping Delay - High Byte] - SRQ/cloakh (0x20) . 78
7.1.8 Specific Request [Power Control Profile] - SRQ/pcp (0x20) . 79
7.1.9 Specific Request [Cloak Detect Ping Delay] - SRQ/detect (0x20) . 80
7.1.10 Specific Request [Proprietary Parameters] - SRQ/MppProp (0x20) . 81
7.1.11 Get Request - GET (0x28) . 82
7.1.12 Enabled Data Streams - EDS (0x29) . 83
7.1.13 Simultaneous Auxiliary Data Transport - SADT (multiple header codes) . 84
7.1.14 Simultaneous Data Stream Response - SDSR (0x38) . 85
7.1.15 Simultaneous Auxiliary Data Control - SADC (0x48) . 86
7.1.16 Report - REPORT (0x58:0). 87
7.1.17 Report [PRx Identification] (0x58:0) . 88
7.1.18 Power Loss Accounting (0x58:1) . 89
7.1.19 Power Loss Accounting Parameters - PLAP (0x78) . 90
7.1.20 Qi MPP Extended Identification - MPP-XID (0x81) . 91
7.1.21 Extended Power Receiver Capabilities - ECAP (0x84). 92
7.2 Power Transmitter data packets . 93
7.2.1 Error Status - ERR (0x01) . 94
7.2.2 Cloak Request - CLOAK (0x1E:0) . 95
7.2.3 Regulation Control Status - RCS (0x1E:3) . 96
7.2.4 Charge Status - CHS (0x1F) . 97
7.2.5 Get Request - GET (0x2E) . 98
7.2.6 Enabled Data Streams - EDS (0x2F) . 99
7.2.7 Inverter Voltage - INV (0x3F:0) . 100
7.2.8 Simultaneous Auxiliary Data Transport - SADT (multiple header codes) . 101
7.2.9 Simultaneous Data Stream Response - SDSR (0x3F:1) . 102
7.2.10 Estimated K - KEST (0x3F:2) . 103
7.2.11 Simultaneous Auxiliary Data Control - SADC (0x4F) . 104
7.2.12 Power Loss Accounting Parameters - PLAP (0x5F) . 105
7.2.13 Extended Power Transmitter Identification - XID (0x8F:0) . 106
7.2.14 Extended Power Transmitter Extended Capabilities - ECAP (0x8F:1) . 107

oSIST prEN IEC 63563-11:2024
List of Tables
1.1 MPP Specifications Departure from Qi EPP .  8
2.1 MPP ID Packet Parameters. 11
2.2 MPP FSK Parameters . 14
2.3 MPP FSK Patterns. 14
2.4 MPP PTx Parameters Override . 15
3.1 PRx packets allowed during MPP negotiation phase . 20
3.2 MPP Negotiation Phase Timing Parameters. 21
3.3 MPP Power Transfer Contract Elements . 23
4.1 MPP Control Error Parameters . 33
4.2 Power Loss Accounting Timing Parameters . 35
4.3 PTx Initiated GET Timing Parameters . 37
4.4 MPP Restricted to Full Transition Timing Parameters . 39
5.1 Cloak Detect Parameters . 45
5.2 Cloak Time Parameters . 48
6.1 Data Streams Identifiers . 55
6.2 Extended Data Streams Timing . 56
6.3 Data Stream CRC Properties . 57
7.1 MPP PRx ASK Packets . 68
7.2 PRx End Of Power Reason Codes . 69
7.3 End Of Power Request FSK Responses . 69
7.4 Extended Control Error FSK Responses. 70
7.5 MPP Specific Requests . 71
7.6 Specific Request Frequency Selection parameters . 72
7.7 Frequency Selection Request FSK Responses . 72
7.8 Power Level Selection Request FSK Responses . 73
7.9 Cloak Ping Delay Selection Request SRQ/cloakl - FSK Responses . 74
7.10 Cloak Ping Delay Selection Request SRQ/cloakh - FSK Responses . 75
7.11 Power Control Profile Values . 76
7.12 Power Control Profile Selection Request FSK Responses . 76
7.13 Cloak Detect Ping Delay Selection Request FSK Responses . 77
7.14 Proprietary Specific Parameters Request FSK Responses . 78
7.15 PRx Get Request Types . 79
7.16 Simultaneous Auxiliary Data Transport - SADT FSK Responses . 81

oSIST prEN IEC 63563-11:2024
7.17 PRx Simultaneous Data Stream Response Type . 82
7.18 Simultaneous Auxiliary Data Control Request Field . 83
7.19 Simultaneous Auxiliary Data Control Parameter Field . 83
7.20 Report ID Field. 84
7.21 Report [PRx Identification] FSK Responses . 85
7.22 PLA FSK Responses . 86
7.23 Received Power Parameters FSK Responses . 87
7.24 PRx Capabilities Packet FSK Responses . 89
7.25 MPP PTX FSK Packets . 90
7.26 PTx Error Status Codes . 91
7.27 PTx End Of Power Reason Codes . 92
7.28 PTx Regulation Control Status Values . 93
7.29 PTx Charge Status Values . 94
7.30 PTx Get Request Fields . 95
7.31 PTx Simultaneous Data Stream Response Type .  99
7.32 PTx Power Limit Reason Code . 104

oSIST prEN IEC 63563-11:2024
Introduction
1.1 Overview
Magnetic power profile (MPP) is a protocol extension that provides additional messages, new power
states/modes, new power transfer contract elements, and aims to provide the following functionalities:
• Operating Frequency Negotiation
• Cloaking (Power Pause)
• Generic Information Exchange
• Simultaneous Data Stream Transactions
• Fast PTx to PRx communication
• Maximum Power and Power Control Profiles Determination
• Extended Power Negotiation
• Extended PTx/PRx Identification and Capabilities
• Extended Control Error Packets and Received Power Packets
• Power Transmitter Battery Level Reporting
• Ecosystem Scalability
A summary of differences between Magnetic Power Profile and EPP is listed below in Table 1.1.
MPP extension allows devices to operate under Restricted mode (no PTx communication) at 360kHz without
performing any explicit negotiation with the Power Transmitter. This flexibility enables devices with limited
resources (e.g., devices with no FSK support) to take advantage of the frequency change feature.

oSIST prEN IEC 63563-11:2024
Table 1.1: MPP Specifications Departure from Qi EPP
Feature EPP MPP
PTx Handshake Message EPP FSK ACK Message MPP FSK ACK Message
(Section 2.3.1)
FSK Parameters Negotiation EPP allows FSK parameters Fixed FSK parameters
negotiation
Data Streams Single Stream Transfer Multiple Concurrent Transfer
Foreign Object Detection FOD Packet, Calibration, RP Replaced with MPP Power Loss
Accounting Packet
oSIST prEN IEC 63563-11:2024
Magnetic Power Profile
2.1 Overview
This chapter describes the Power Receiver and Power Transmitter requirements for Magnetic Power Profile
and the modes devices may use to communicate.
MPP supports two protocol modes:
1. Restricted Mode: One-way communication (PRx to PTx) with limited power levels (5W PRECT) using Qi
Baseline Protocol
2. Full Mode: Supports bi-directional communication and enables negotiation of higher power levels
2.1.1 Restricted Mode
MPP Restricted mode allows PRx to establish a charging session with PTx using one-way communication
(PRx to PTx) at 360kHz operating frequency using Qi Baseline Protocol.
PTx and PRx shall follow the Qi Baseline Protocol specifications when operating in Restricted mode.
(Informative)
MPP Restricted mode can be used when PRx is operating under a constrained environment e.g., device is fully
discharged
PRx is allowed to transition from MPP Restricted to MPP Full mode to enable bi-directional communication
and higher power levels. Refer to Section 4.6 for more details on how to perform the transition.
2.1.2 Full Mode
MPP Full mode enables a charging session with bi-directional communication between PTx and PRx allowing
devices to perform more complex operations such as exchange of identification information, devices
capabilities, ecosystem scalability coefficients, power negotiation and perform authentication.
In MPP Full mode, devices may transition between different protocol phases such as Negotiation, Power
Transfer, Cloak and are able to negotiate higher power levels compared to Restricted mode.
MPP Full mode is based on Qi Extended Power Profile (EPP) protocol. PTx and PRx shall follow the Qi EPP
specifications when operating in this mode. Changes to the EPP specifications are explicitly stated in this
document.
oSIST prEN IEC 63563-11:2024
Changes to specifications include:
1. Added MPP Power Transfer Contract Elements and removed support for EPP RP (Received Power)
contract elements
2. Added MPP data packets and removed support for EPP FOD data packets
3. Overriding time parameters
2.2 Power Receiver Requirements
MPP ASK specification is based on Qi EPP, all the timing requirements/specifications specified by Extended
Power Profile apply to MPP.
All standard Qi packets used in MPP follow the Qi specifications. Changes to the handling or the definition of
the packets are explicitly stated in this document.
2.2.1 Amplitude Shift Keying (ASK)
MPP follows the Qi ASK specifications.
2.2.2 Startup Behavior
An MPP-compatible Power Receiver shall start by sending the following sequence of packets during the
ping/configuration phase.
1. Signal Strength (SIG)
2. Identification (ID)
3. Extended Identification (XID)
4. Power Control Hold-Off (PCH) - Optional
5. Configuration Packet (CFG)
The packets shall contain the MPP identifiers as described in this section to allow an MPP-compatible Power
Transmitter to identify the Power Receiver.
PRx PTx
SIG
ID
XID
PCH (Optional)
CFG
Figure 2.1: MPP ID/CFG Phase Packets
Signal Strength (SIG)
Power Receiver shall report the Signal Strength (SIG) data packet following the Qi specifications.

oSIST prEN IEC 63563-11:2024
Identification (ID)
Power Receiver shall report the Identification Packet (ID) with the following parameters as shown in Figure 2.2
and Table 2.1.
b7 b6 b5 b4 b3 b2 b1 b0
Major Minor
B0
B1
PRMC
B2
Ext
B3
Random Iden;fier
B4
B5
Mfg Rsvd
B6
Figure 2.2: MPP ID Packet Structure
Table 2.1: MPP ID Packet Parameters
Field Value
Major Version 2
Minor Version 0
Manufacturer Code (PRMC) Assigned PRMC code
Ext 1
Random Identifier Follows Random Device Identifier Policy
Mfg Reserved Reserved for Manufacturer’s use (Proprietary)
Refer to Qi Communications Protocol section 8.11 for more information on Random Device Identifier policy
Extended Identification (XID)
Power Receiver shall report the MPP-Extended Identification Packet (XID) to advertise MPP support. Detailed
packet definition is described in section 7.1.20.
b7 b6 b5 b4 b3 b2 b1 b0
0xFE
B0
Restricted Mfg Rsvd
B1
Mfg Rsvd
B2
VRECT
B3
Alpha0 Rx
B4
Alpha1 Rx
B5
Alpha-Kth Rx
B6
Mfg Rsvd
B7
Figure 2.3: MPP XID Packet Parameters
Power receiver may choose to advertise MPP-compatibility and operate under MPP restricted mode by
setting the Restricted bit as described in Section 7.1.20. Otherwise, the Power Receiver may request to
operate under MPP Full mode by setting the Restricted bit to zero.

oSIST prEN IEC 63563-11:2024
Power Receiver may choose to not advertise MPP capabilities by performing one of the following:
1. Setting the (XID Sub Header) field to any value other than 0xFE
2. Skipping XID packet, and setting Ext bit to 0 in ID packet
Power Control Hold-Off (PCH) - Optional
Power receiver may choose to operate in Restricted mode and later switch to MPP full mode. This transition
requires the Power Receiver to report PCH packet during the configuration phase.
Refer to Section 4.6 for more details on value selection.
Configuration (CFG)
Power Receiver shall report the Configuration (CFG) packet according to the Qi specifications.
2.2.3 Profile Activation
Depending on the selected operating mode in XID packet (Section 2.2.2), Power Receiver shall proceed as
follows:
1. MPP - Restricted: PRx shall proceed to Restricted Power Transfer Phase at 360kHz (Follows Qi
Baseline Protocol)
2. MPP - Full: PRx shall enable the FSK decoder, depending on the decoding result:
a) FSK MPP Pattern: PRx shall proceed to MPP Negotiation Phase (Section 3)
b) FSK NAK Pattern: PRx shall proceed to MPP Negotiation Phase with MPP error status (Section 3)
c) Timeout / Else: PRx shall proceed according to the Qi specifications (BPP/EPP)
1. FSK pattern response to Configuration (CFG) packets is always transmitted using the default 512
switching cycles.
2. Refer to MPP System Specifications - Communications Physical Layer: FSK (Section 6.2) for more
information on FSK parameters.
Figure 2.4 summarizes the flow.

oSIST prEN IEC 63563-11:2024
Ping Phase
(any frequency)
Send
Signal Strength
Identification packet
PRx supports
Proceed as non-MPP
No
MPP ? Qi v1.x PRx
Yes
Send MPP Compatible
XID
Optional: Send PCH
Data Packet
Send Configuration
Packet
Proceed to MPP-
MPP-Restricted Active Frequency
Yes Yes Restricted Power
mode ? is 360kHz ?
Transfer Phase
No No
Proceed to BPP
Power Transfer
Phase
MPP/NAK
Proceed as non-MPP
FSK Pattern
Timeout / ACK
Qi v1.x PRx
Detected ?
May proceed as a BPP/EPP PRx
Yes
Proceed to MPP
Negotiation Phase
Figure 2.4: MPP Power Receiver Configuration Phase Decision Tree

oSIST prEN IEC 63563-11:2024
2.3 Power Transmitter Requirements
MPP FSK specification is based on Qi EPP, all the timing requirements/specifications specified by Extended
Power Profile apply to MPP. Updated parameters are explicitly stated in this document.
2.3.1 Frequency Shift Keying (FSK)
Magnetic Power Profile v1.x defines fixed FSK parameters:
Table 2.2: MPP FSK Parameters
Parameter Value Notes
Switching Cycles 512 / 128 FSK 512 switching cycles is only used when PTx responds
to CFG packet (Section 2.2.3)
Otherwise, PTx shall use 128 switching cycles
Preamble 4-bits (1111) Applies to FSK Packets only (Patterns are excluded)
MPP uses predefined FSK parameters as specified in MPP System Specifications - Communications Physical
Layer: FSK (Section 6.2)
Packet Format
MPP FSK Packet structure is shown in Figure 2.5.
Preamble Header Message Payload Checksum
Figure 2.5: MPP FSK Packet Structure
FSK Pattern
MPP extends Qi EPP FSK pattern responses with MPP Pattern (Table 2.3, Figure 2.6).
Table 2.3: MPP FSK Patterns
Response Pattern b0.b7 Notes
ACK 1111 1111
NAK 0000 0000
ND 1010 1010
ATN 1100 1100
MPP 1000 1000 MPP Pattern
APP 1111 0000 Reserved proprietary pattern (Note)
Note on APP pattern:
The proprietary precursor implementation to MPP uses this pattern. To prevent interoperability problems, use
of this pattern is reserved.
b3
b0 b1 b2 b4
b5 b6 b7
ZERO ONE ZERO
ONE ZERO ZERO ZERO ZERO
Figure 2.6: MPP FSK Pattern Format

oSIST prEN IEC 63563-11:2024
2.3.2 Timings Override
FSK Response Window
Due to the addition of preamble to the FSK packets, the start of the FSK packet now points to the start of
preamble of the FSK packet as shown in Figure 2.7.
tresponse
Simple-query data packet Response Pattern
tresponse
Data-request data packet Preamble PTx Data Packet
Figure 2.7: MPP FSK Response Timing
No Power Signal Window
Time duration between two consecutive pings (tnopower) has been updated. Refer to table 2.4.

Table 2.4: MPP PTx Parameters Override
Parameter Symbol Minimum Target Maximum Unit
No Power Signal window t 50 N/A N/A ms
nopower
2.3.3 Startup Behavior
After detecting PRx placement on the charging surface, MPP PTx shall perform digital ping and identify the
Power Receiver using the information embedded in ID and XID packets as described in Section 2.2.2.
From the PTx’s perspective, a PRx supports MPP if both of the following conditions are satisfied:
1. Qi Version: Qi protocol version in ID packet (Section 2.2.2) is set to (Major=2, Minor=0) or higher.
2. MPP Support Advertised: Sub-header (byte 0) in XID packet is set to MPP selector (Section 7.1.20)
If the conditions are not satisfied, the Power Transmitter shall proceed to the next phase according to the Qi
specifications.
Depending on the digital ping level used to establish the communication at 128kHz frequency, PTx shall set
an internal error status as following:
• Error = None: Communication at 128kHz was established using ’Qi_HB_Low’ digital ping level
• Error = digital ping level mismatch: Otherwise
PTx shall then proceed to the requested MPP operation mode reported in MPP-XID packet as following:
• Activate Restricted Mode: If Restricted flag is set to one.
• Activate Full mode: If Restricted flag is set to zero.
PTx shall clear the error status if it decides to remove the power signal for any reason i.e., error status shall not
persist across communication restarts.

oSIST prEN IEC 63563-11:2024
MPP Restricted Mode
PRx may choose to operate under MPP- Restricted Power Mode by setting the Restricted field in MPP-XID
packet to 1.
PTx shall decode the MPP-XID packet and proceed as following:
• If active frequency is 360kHz: Proceed assuming MPP Restricted mode
• Else: Proceed depending on the error status
If the error status is not set, PTx shall remove Power Signal and start digital ping using 360kHz as operating
frequency after t_nopower. Otherwise, PTx shall remove the power signal and perform digital ping again
using 128 kHz and ’Qi_HB_Low’ digital ping level.
Figure 2.8 describes the frequency change behavior under Restricted mode.
PRx PTx
Digital ping @128kHz (Example)
SIG
ID
XID
Restricted mode requested
PTx removes power signal and restarts ping phase with frequency set to 360kHz
Digital ping @360kHz
SIG
ID
XID
CFG
CE
Figure 2.8: MPP Restricted Frequency Change Sequence
MPP Full Mode
PTx shall continue processing all packets in configuration phase and respond to the Configuration (CFG)
packet as following:
• FSK MPP Pattern: error status is not set
• FSK NAK Pattern: error status is set

oSIST prEN IEC 63563-11:2024
PTx shall generate the FSK response using 512 switching cycles. After responding with FSK, PTx shall
proceed to MPP negotiation phase as described above.
FSK patterns are described in Table 2.3
Figures below summarize the 128kHz and 360kHz digital pings behavior for both Restricted and Full modes.
Device Placement Detection
Set initial Digital Ping
level and set frequency
to 128kHz
Digital Ping
Receive SIG
Receive ID/XID
Packets, if available
PRx Advertised Proceed as non-MPP
No
Qi v1.x PTx
MPP Support ?
Yes
No
Communication
established using
XID[MPP Restricted] == 1 Yes
Qi_HB_Low digital ping
level ?
No
Yes
Receive CFG Packet
Remove Power Signal
Set frequency to
360kHz
Communication
Yes No
established using
Qi_HB_Low digital ping
level ?
Set Error Status
Proceed to 360 kHz
digital ping flow
Send MPP FSK
Send NAK FSK Pattern
Pattern
Proceed to MPP
Negotiation Phase
Figure 2.9: MPP Power Transmitter Configuration Phase Decision Tree Flow - 128kHz ping

oSIST prEN IEC 63563-11:2024
Set digital ping level
and set frequency to
360kHz
Digital Ping
Receive SIG
Receive ID/XID
Packets, if available
PRx Advertised Fall back to 128kHz
No Remove Power Signal
digital ping flow
MPP Support ?
Yes
Receive CFG Packet
XID[MPP Restricted] == 1 Yes
No
Send MPP FSK Pattern
Proceed to MPP Proceed to MPP
Negotiation Phase Restricted Mode
Figure 2.10: MPP Power Transmitter Configuration Phase Decision Tree Flow - 360kHz ping
2.4 Supporting EPP and MPP protocols
Devices may choose to support multiple power profiles / protocols e.g., PRx/PTx may support EPP in addition
to MPP. This section discusses how these devices behave when attached to another device that supports
EPP, MPP or both.
2.4.1 MPP/EPP Support on PRx
PRx may choose to advertise MPP and EPP support by performing the following:
• MPP Support: Described in section 2.2.2
• EPP Support: Follow the Qi communications protocol specifications
PRx will send the MPP-XID packet to the Power Transmitter, and also properly set the configuration packet to
advertise EPP support (e.g. FSK parameters, NEG bit set to 1, etc.).
After sending the CFG data packet, PRx will have to attempt to decode FSK, PRx will proceed depending on
the decoding result:
• MPP Supported Patterns received (MPP, NAK): PTx supports MPP, PRx shall proceed using MPP
protocol
• ACK Pattern received: PTx supports EPP, PRx shall proceed using EPP protocol
• Timeout: PRx shall proceed using BPP protocol

oSIST prEN IEC 63563-11:2024
2.4.2 MPP/EPP Support on PTx
Depending on the data provided by PRx during configuration phase, the PTx will be able to determine which
power profile is supported by the PRx.
• MPP Support advertised: PRx advertises MPP support as described in section 2.2.2
• EPP Support advertised: PRx advertises EPP support as described in Qi communications protocol book
(e.g., NEG bit is set in CFG packet)
PTx may detect a PRx that s
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