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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