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ACR89U-A2 – Reference Manual
Version 1.01
www.acs.com.hk
Page 17 of 57
3.4.1.3.
RDR_to_PC_Parameters
This message is sent by ACR89 in response to
PC_to_RDR_GetParameters
,
PC_to_RDR_ResetParameters
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 and error register as
defined in
Section 3.7
8
bError
1
-
Slot status and error register as
defined in
Section 3.7
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
abProtocolDataStructure
Byte
array
-
Protocol Data Structure as
summarized in standard CCID
Session 5.2.3
3.4.1.4.
RDR_to_PC_Escape
This message is sent by ACR89 in response to
PC_to_RDR_Escape
message.
Offset
Field
Size
Value
Description
0
bMessageType
1
83h
-
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 and error register as defined in
Section 3.7
8
bError
1
-
Slot status and error register as defined in
Section 3.7
9
bRFU
1
00h
RFU
10
abData
Byte
array
-
Depending on its corresponding extended
command, the data responded by ACR89
vary and are specified in
Section 3.5.4