Advanced Card Systems Ltd. ACR3901T-W1, Reference Manual

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ACR3901T-W1 – Reference Manual
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Version 1.02
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Response Data Format
Offset Field Size Value Description
0
bMessageType
1
17h
-
1
LEN1 LEN2 (wLength)
2 -
Number of extra bytes starting from
the next field for this message. It is
expressed in two bytes long. LEN1 is
LSB while LEN2 is MSB.
3
Data
Param 1 -
Parameter:
Short APDU level
00h – default
Extended APDU level
00h – the response APDU begins and
ends with this command.
01h – the response APDU begins with
this command and is to continue.
02h – this Data field continues the
response APDU and ends the
response APDU.
03h – this Data field continues the
response APDU and another block is
to follow.
10h – empty Data field, continuation of
the command APDU is expected in the
next Command.
4 APDU RSP N - APDU Response
4+N
CSUM (wChecksum)
1 -
CSUM means the XOR values of all
bytes in the Data
Response Data Format (WTX)
Offset Field Size Value Description
0
bMessageType
1
18h
-
1 LEN1 LEN2 (wLength) 2 0300h
Number of extra bytes starting from
the next field for this message. It is
expressed in two bytes long. LEN1 is
LSB while LEN2 is MSB.
3 STA 1 -
Card Status:
00 = Unknown status
01 = No card present
02 = Card present but inactive
03 = Card present and active
4 WTXM 1 - Waiting Time extension Multiplier
5 CSUM (wChecksum) 1 -
CSUM means the XOR values of all
bytes in the command