ACR3801 – Reference Manual
Version 2.01
www.acs.com.hk
Page 12 of 62
8.0. Commands
8.1. CCID Command Pipe Bulk-OUT Messages
ACR3801 shall follow the CCID Bulk-OUT Messages as specified in CCID Section 4. In addition, this
specification defines some extended commands for operating additional features.
This section lists the CCID Bulk-OUT Messages to be supported by ACR3801.
8.1.1.
PC_to_RDR_IccPowerOn
Activates the card slot and returns ATR from the card.
Offset
Field
Size
Value
Description
0
bMessageType
1
62h
-
1
dwLength
4
00000000h Size of extra bytes of this message
2
bSlot
1
-
Identifies the slot number for this
command
5
bSeq
1
-
Sequence number for command
6
bPowerSelect
1
-
Voltage that is applied to the ICC:
00h = Automatic Voltage Selection
01h = 5 volts
02h = 3 volts
7
abRFU
2
-
Reserved for future use
The response to this command message is the
RDR_to_PC_DataBlock
response message and the
data returned is the Answer-to-Reset (ATR) data.