User's Manual

ACR1281S
 Advanced Card Systems Ltd. Page 17 of 56
Offset Field Size Value Description
0 bMessageType 1 65h
1 dwLength
<LSB .. MSB>
4 00000000h Message-specific data length
5 bSlot 1 00h,01h 00h forPICC interface, 01h for ICC
6 bSeq 1 00-FFh Sequence number for command
7 abRFU 3 Reserved for Future Use
8.5 HOST_to_RDR_SetParameters
This command is used to change the parameters for contact interface to implement PPS.
Command Frame Format
STX
(0x02)
Bulk-OUT Header
(HOST_to_RDR_XfrBlock)
Parameters Checksum ETX
(0x03)
1 Byte 10 Bytes 5 or 7 bytes 1 Byte 1 Byte
HOST_to_RDR_SetParameters Format
Offset Field Size Value Description
0 bMessageType 1 61h
1 dwLength
<LSB .. MSB>
4 00000005h,
00000007h
Message-specific data length
5 bSlot 1 00h,01h 00h forPICC interface, 01h for ICC
6 bSeq 1 00-FFh 00h for protocol T=0, 01h for T=1.
7 bProtocolNum 1 00h,01h Used to extend the Block Waiting
Timeout.
8 abRFU 2 Reserved for Future Use
10 abProtocolDataStructure Byte
array
Protocol Data Structure
Remarks:
For protocol T = 0, dwLength = 00000005h; for protocol T = 1, dwLength = 00000007h. More
detail about the abProtocolDataStructure field, please refer to CCID specification.
8.6 HOST_to_RDR_Escape
This command is used to peripherals control such as LED & Buzzer control, Get firmware
Version, set the serial communication mode and so on.
Command Frame Format
STX
(0x02)
Bulk-OUT Header
(HOST_to_RDR_XfrBlock)
Commands Checksum ETX
(0x03)
1 Byte 10 Bytes M bytes 1 Byte 1 Byte
HOST_to_RDR_Escape Format
Offset Field Size Value Description
0 bMessageType 1 6Bh
1 dwLength
<LSB .. MSB>
4 M Message-specific data length