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ACR33U-A1 SmartDuo Reference Manual
Version 1.00
Page 21 of 56
www.acs.com.hk
Protocol Data Structure for Protocol T=1 (bProtocolNum=1, dwLength=00000007h)
Offset
Field
Size
Value
Description
10
bmFindexDinde
x
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 Guardtime (0 to 254 etu between
two characters). If value is
FFh
, then
guardtime is reduced by
1
.
13
BwaitingInteg
erT1
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