SCR331-DI Product Technical Manual
4.5.7.2.2 T=CL PPS
Description
This APDU helps user to change the baud rate of PICC. Currently this is enabled only for Type A
PICC. This command is similar to ISO 7816 PPS, but this command has to manually send by user for
changing speed of PICC. As per ISO specification, CLA byte should be 0xFF, and PPS0 byte
indicates whether PPS1 (baud rate parameter) is available. PPS2 and PPS3 are RFU. PPS1 baud
rate parameter contains DSI and DRI values like ISO 7816 FI/DI values. Upper half bits are DSI and
lower half bits are DRI.
This command should be used only when Auto PPS is disabled ( discussed in escape messages
section)
Format
Command
CLA
PPSS
PPS1 PPS2
PPS3
T=CL PPS
0xFF
0xD0
DSI/D
RI
RFU
RFU
Response
Data
PPSS
Example
User APDU command
CLA
PPSS PPS1
PPS2
PPS3
0xFF
0xD0
0x11
0x00
0x00
R-APDU
Data
0xD0
IND.SCR331-DI.MANUAL.VER.1.8
VER1.8
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