User's Manual

ACR1281S
 Advanced Card Systems Ltd. Page 19 of 56
9. Bulk-IN Response
9.1 RDR_to_HOST_DataBlock
The reader in response to the “HOST_to_RDR_IccPowerOn” and “HOST_to_RDR_XfrBlock”
command messages.
Response to the “HOST_to_RDR_IccPowerOn”:
Response Frame Format
STX
(0x02)
Bulk-IN Header
(RDR_to_HOST_DataBlock)
abData Checksum ETX
(0x03)
1 Byte 10 Bytes N Bytes of ATR
(If card is available)
1 Byte 1 Byte
RDR_to_HOST_DataBlock Format
Offset Field Size Value Description
0 bMessageType 1 80h Indicates that a data block is being
sent from the ACR1281S
1 dwLength
<LSB .. MSB>
4 N Size of abData field. (N Bytes)
5 bSlot 1 Same as
Bulk-OUT
00h for PICC interface, 01h for ICC
6 bSeq 1 Same as
Bulk-OUT
Sequence number for corresponding
command.
7 bStatus 1
8 bError 1
9 bChainParameter 1
Response to “HOST_to_RDR_XfrBlock”
Response Frame Format
STX
(0x02)
Bulk-IN Header
(RDR_to_HOST_DataBlock)
abData Checksum ETX
(0x03)
1 Byte 10 Bytes N Bytes 1 Byte 1 Byte
RDR_to_HOST_DataBlock Format
Offset Field Size Value Description
0 bMessageType 1 80h Indicates that a data block is being
sent from the ACR1281S
1 dwLength
<LSB .. MSB>
4 N Size of abData field. (N Bytes)
5 bSlot 1 Same as
Bulk-OUT
00h for PICC interface, 01h for ICC
6 bSeq 1 Same as
Bulk-OUT
Sequence number for corresponding
command.
7 bStatus 1
8 bError 1
9 bChainParameter 1