User's Manual

ACR1281S
 Advanced Card Systems Ltd. Page 20 of 56
9.2 RDR_to_HOST_SlotStatus
The reader in response to the “HOST_to_RDR_IccPowerOff” and
“HOST_to_RDR_GetSlotStatus” command messages.
Response Frame Format
STX
(0x02)
Bulk-IN Header
(RDR_to_HOST_SlotStatus)
abData Checksum ETX
(0x00)
1 Byte 10 Bytes 0 Byte 1 Byte 1 Byte
RDR_to_HOST_SlotStatus Format
Offset Field Size Value Description
0 bMessageType 1 81h Indicates that a data block is being
sent from the ACR1281S
1 dwLength
<LSB .. MSB>
4 00000000h Size of abData field. (0 Bytes)
5 bSlot 1 Same as
Bulk-OUT
00h for PICC, 01h for ICC
6 bSeq 1 Same as
Bulk-OUT
Sequence number for corresponding
command
7 bStatus 1
8 bError 1
9 bClockStatus 1
9.3 RDR_to_HOST_Parameters
The reader in response to the “HOST_to_RDR_SetParameters” command messages.
Response Frame Format
STX
(0x02)
Bulk-IN Header
(RDR_to_HOST_SlotStatus)
abData Checksum ETX
(0x00)
1 Byte 10 Bytes 5 or 7 Bytes 1 Byte 1 Byte
RDR_to_HOST_SlotStatus Format
Offset Field Size Value Description
0 bMessageType 1 82h Indicates that a data block is being
sent from the ACR1281S
1 dwLength
<LSB .. MSB>
4 00000005h,
00000007h
Size of abData field.
5 bSlot 1 Same as
Bulk-OUT
00h for PICC, 01h for ICC
6 bSeq 1 Same as
Bulk-OUT
Sequence number for corresponding
command
7 bStatus 1
8 bError 1
9 bProtocolNum 1
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.