Rdr_to_pc_parameters – ACS ACR33U-A1 SmartDuo Smart Card Reader User Manual
Page 22
ACR33U-A1 – Reference Manual
Version 1.02
www.acs.com.hk
Page 22 of 60
8.2.3.
RDR_to_PC_Parameters
This message is sent by ACR33U-A1 in response to PC_to_RDR_GetParameters and
PC_to_RDR_SetParameters messages.
Offset
Field
Size
Value Description
0
bMessageType
1
82h
-
1
dwLength
4
-
Size of extra bytes of this message
5
bSlot
1
-
Same value as in Bulk-OUT message
6
bSeq
1
-
Same value as in Bulk-OUT message
7
bStatus
1
-
Slot status register as defined in CCID
Section 4.2.1
8
bError
1
-
Slot error register as defined in CCID
Section 4.2.1
9
bProtocolNum
1
-
Specifies what protocol data structure
follows:
00h = Structure for protocol T=0
01h = Structure for protocol T=1
The following values are reserved for
future use.
80h = Structure for 2-wire protocol
81h = Structure for 3-wire protocol
82h = Structure for I2C protocol
10
abProtocolDataSt
ructure
Byte
array
-
Protocol Data Structure as summarized
in CCID Section 10.1.6
Protocol Data Structure for Protocol T=0 (bProtocolNum=0, dwLength=00000005h)
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
bmTCCKST0
1
00h,
02h
For T=0, B0 – 0b, B7-2 – 000000b
B1 – Convention used (b1=0 for direct,
b1=1 for inverse)
12
bGuardTimeT0
1
00-FFh
Extra guard time between two
characters. Add 0 to 254etu to the
normal guard time of 12etu. FFh is the
same as 00h.
13
bWaitingIntegerT0
1
00-FFh WI for T=0 used to define WWT