Memory card – atmel at88c1608, Select_card_type, Read_memory_card – ACS ACR38K Smart Keyboard User Manual

Page 28

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ACR38x (CCID) – Reference Manual

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Version 6.04

www.acs.com.hk

Page 28 of 58

9.3.4.

Memory Card – ATMEL AT88C1608

9.3.4.1. SELECT_CARD_TYPE

This command powers up and down the selected card that is inserted in the card reader and performs

a card reset. It will also select the page size to be 16-byte page write.
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

04h


Response Data Format (abData field in the RDR_to_PC_DataBlock)

SW1 SW2

Where:

SW1 SW2 = 90 00h if no error

9.3.4.2. READ_MEMORY_CARD

Command Format (abData field in the PC_to_RDR_XfrBlock)

Pseudo-APDU

CLA INS Zone Address Byte Address MEM_L

FFh

Where:

INS

= B0h for reading user zone
= B1h for reading configuration zone or reading fuse

Zone Address

= 0000 0A

10

A

9

A

8

b where A

10

is the MSB of zone address

= don’t care for reading fuse

Byte Address

= A

7

A

6

A

5

A

4

A

3

A

2

A

1

A

0

b is the memory address location of the memory card

= 1000 0000b for reading fuse

MEM_L

Length of data to be read from the memory card


Response Data Format (abData field in the RDR_to_PC_DataBlock)

BYTE 1 … … BYTE N SW1 SW2

Where:

BYTE x

Data read from memory card

SW1 SW2 = 90 00h if no error

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