Erase_application_zone_with_write_and_erase – ACS ACR33U-A1 SmartDuo Smart Card Reader User Manual

Page 57

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ACR33U-A1 – Reference Manual

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Version 1.02

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Page 57 of 60

correct value

CODE:

N bytes of Erase Key


Response data format (abData field in the RDR_to_PC_DataBlock)

SW1 SW2

Where:

SW1, SW2 = 90 00h if no error

Note: After SW1SW2 = 0x9000h has been received, read back the data in Application Zone can

check whether the ERASE_APPLICATION_ZONE_WITH_ERASE is correct. If all data in

Application Zone is erased and equals to “0xFFh”, the previous verification is success.

8.3.8.6. ERASE_APPLICATION_ZONE_WITH_WRITE_AND_ERASE

This command can be used in the following cases:

•

AT88SC101: To erase the data in Application Zone with EC Function Enabled

•

AT88SC102: To erase the data in Application Zone 2 with EC2 Function Enabled

•

AT88SC1003: To erase the data in Application Zone 2 with EC2 Function Enabled

With EC or EC2 Function Enabled (that is, ECEN or EC2EN Fuse is undamaged and in “1” state), the

following actions are executed:

•

Present the specified code to the card

•

Search a '1' bit in the presentation error counter and write the bit to '0'

•

Erase the presentation error counter. The data in corresponding Application Zone can be

erased when the submitted code is correct.

Command format (abData field in the PC_to_RDR_XfrBlock)

Pseudo-APDU

CLA INS Error Counter LEN Byte Address MEM_L

CODE

Byte 1 Byte 2 Byte 3 Byte 4

FFh 20h

80h

04h

Where:

Error Counter LEN: Length of presentation error counter in bits. The value should be

0x80h always.

Byte Address:

Byte address of the Application Zone Key in the card.

Byte Address

AT88SC101

96h

AT88SC102

9Ch

AT88SC1003

5Ch

CODE:

4 bytes Erase Key

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