ACS ACR38K Smart Keyboard - Manual (Page 53)

ACR38x (CCID) – Reference Manual [email protected]
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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 to
check if the ERASE_APPLICATION_ZONE_WITH_ERASE is correct. If all data in Application
Zone is erased and is equal to “0xFFh,” the previous verification is successful.
9.3.9.6. ERASE_APPLICATION_ZONE_WITH_WRITE_AND_ERASE
This command can be used in the following cases:
1. AT88SC101: To erase the data in Application Zone with EC Function Enabled.
2. AT88SC102: To erase the data in Application Zone 2 with EC2 Function Enabled.
3. 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:
1. Present the specified code to the card.
2. Search a '1' bit in the presentation error counter and write the bit to '0'.
3. 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
Response Data Format (abData field in the RDR_to_PC_DataBlock)
SW1 SW2