Owner manual

ACR33U-A1 – Reference Manual [e-mail]
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