ACS ACR33U-A1 SmartDuo Smart Card Reader User Manual
Page 23
ACR33U-A1 – Reference Manual
Version 1.02
www.acs.com.hk
Page 23 of 60
Offset
Field
Size Value Description
14
bClockStop
1
00-03h
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
Protocol Data Structure for Protocol T=1 (bProtocolNum=1, dwLength=00000007h)
Offset
Field
Size
Value
Description
10
bmFindexDindex
1
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
11
BmTCCKST1
1
10h,
11h,
12h,
13h
For T-1, 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)
12
BGuardTimeT1
1
00-FFh
Extra guard time (0 to 254etu between
two characters). If value is FFh, then
guard time is reduced by 1h.
13
BwaitingIntegerT1
1
00-9Fh
B7-4 = BWI
B3-0 = CWI
14
bClockStop
1
00-03h
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
15
bIFSC
1
00-FFh Size of negotiated IFSC
16
bNadValue
1
00h
Only support NAD = 00h