ACS ACR89U-A2 Reference Manual page 17

Protocol Data Structure for Protocol T=1 (dwLength=00000007h)
Offset
10 bmFindexDindex
11
BGuardTimeT1
12
13 BWaitingIntegerT1
14
15
16
The response to this message is the RDR_to_PC_Parameters message.
ACR89U-A2 – Reference Manual
Version 1.00
Field Size
1
BmTCCKST1 1
1
1
bClockStop 1
bIFSC 1
bNadValue 1
Value Description
B7-4 – FI – Index into the table 7 in
ISO/IEC 7816-3:1997 selecting a clock
rate conversion factor
-
B3-0 – DI - Index into the table 8 in
ISO/IEC 7816-3:1997 selecting a baud
rate conversion factor
B7-2 – 000100b
B0 – Checksum type (b0=0 for LRC,
b0=1 for CRC
-
B1 – Convention used (b1=0 for direct,
b1=1 for inverse)
Note: The CCID ignores this bit.
Extra Guardtime (0 to 254 etu between
- two characters). If value is FFh, then
guardtime is reduced by 1 etu.
B7-4 = BWI values 0-9 valid
-
B3-0 = CWI values 0-Fh valid
ICC Clock Stop Support:
00h = Stopping the Clock is not allowed
- 01h = Stop with Clock signal Low
02h = Stop with Clock signal High
03h = Stop with Clock either High or Low
- Size of negotiated IFSC
00h Only supports NAD = 00h
Page 17 of 80
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