Memory card command set, Memory card – 1, 2, 4, 8 and 16 kbit i2c card, Select_card_type – ACS ACR38K Smart Keyboard User Manual
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ACR38x (CCID) – Reference Manual
Version 6.04
www.acs.com.hk
Page 20 of 58
9.3. Memory Card Command Set
This section contains the Memory Card Command Set for ACR38x (CCID).
9.3.1.
Memory Card – 1, 2, 4, 8 and 16 Kbit I2C Card
9.3.1.1. SELECT_CARD_TYPE
This command powers up and down the selected card that is inserted in the card reader and performs
a card reset.
Note: This command can only be used after the logical smart card reader communication has been
established using the SCardConnect() API. For details of SCardConnect() API, please refer to PC/SC
specifications.
Command Format (abData field in the PC_to_RDR_XfrBlock)
Pseudo-APDU
CLA INS P1 P2 Lc Card Type
FFh
A4h 00h 00h 01h
01h
Response Data Format (abData field in the RDR_to_PC_DataBlock)
SW1 SW2
Where:
SW1 SW2 = 90 00h if no error
9.3.1.2. SELECT_PAGE_SIZE
This command selects the page size to read the smart card. The default value is 8-byte page write. It
resets to default value whenever the card is removed or the reader is powered off.
Command Format (abData field in the PC_to_RDR_XfrBlock)
Pseudo-APDU
CLA INS
P1
P2
Lc Page Size
FFh 01h 00h 00h 01h
Where:
Page size
= 03h for 8-byte page write
= 04h for 16-byte page write
= 05h for 32-byte page write
= 06h for 64-byte page write
= 07h for 128-byte page write