User's Manual

ACR122L-ACS Design Specification
Version 0.03 19/05/2010
Page
13
of
50
ACR122L
-
ACS
RDR_to_HOST_DataBlock Format
Offset Field Size Value Description
0 bMessageType 1 80h Indicates that a data block is being sent
from the ACR122L
1 dwLength
<LSB .. MSB>
4 N Size of abData field. (N Bytes)
5 bSlot 1 Same as Bulk-
OUT
Identifies the slot number for this
command
6 bSeq 1 Same as Bulk-
OUT
Sequence number for corresponding
command
7 bStatus 1
8 bError 1
9 bChainParameter 1
Example1. To activate the SAM Interface 1 slot 0 (default), sequence number = 1, 5V card.
HOST -> 02 62 00 00 00 00 00 01 01 00 00 [Checksum] 03
RDR -> 02 00 00 03
RDR -> 02 80 0D 00 00 00 00 01 00 00 00 3B 2A 00 80 65 24 B0 00 02 00 82 90
00 [Checksum] 03
The ATR = 3B 2A 00 80 65 24 B0 00 02 00 82; SW1 SW2 = 90 00
Example2. To activate the SAM Interface 2 slot 0 (default), sequence number = 1, 5V card.
HOST -> 12 62 00 00 00 00 00 01 01 00 00 [Checksum] 13
RDR -> 12 00 00 13
RDR -> 12 80 0D 00 00 00 00 01 00 00 00 3B 2A 00 80 65 24 B0 00 02 00 82 90
00 [Checksum] 13
The ATR = 3B 2A 00 80 65 24 B0 00 02 00 82; SW1 SW2 = 90 00
Example3. To activate the SAM Interface 3 slot 0 (default), sequence number = 1, 5V card.
HOST -> 22 62 00 00 00 00 00 01 01 00 00 [Checksum] 23
RDR -> 22 00 00 23
RDR -> 22 80 0D 00 00 00 00 01 00 00 00 3B 2A 00 80 65 24 B0 00 02 00 82 90
00 [Checksum] 23
The ATR = 3B 2A 00 80 65 24 B0 00 02 00 82; SW1 SW2 = 90 00