ACS ACR33U-A1 SmartDuo Smart Card Reader User Manual
Page 11
ACR33U-A1 – Reference Manual
Version 1.02
www.acs.com.hk
Page 11 of 60
Offset
Field
Size
Value
Description
40
dwFeatures
4
000204B0h
ACR33U-A1 supports the following
features:
Automatic ICC clock frequency change
according to parameters
Automatic baud rate change according
to frequency and FI,DI parameters
Automatic PPS made by the CCID
according to the active parameters
Automatic IFSD exchange as first
exchange (T=1 protocol in use)
Short APDU level exchange with CCID
44
dwMaxCCIDMessageLength
4
0000010Fh Maximum message length accepted by
ACR33U-A1 is 271 bytes
48
bClassGetResponse
1
00h
Insignificant for TPDU level exchanges
49
bClassEnvelope
1
00h
Insignificant for TPDU level exchanges
50
wLCDLayout
2
0000h
No LCD
52
bPINSupport
1
03h
With PIN Verification and Modification
53
bMaxCCIDBusySlots
1
01h
Only 1 slot can be simultaneously busy