ACS ACR38K Smart Keyboard User Manual
Page 49

ACR38x (CCID) – Reference Manual
Version 6.04
www.acs.com.hk
Page 49 of 58
Command Format (abData field in the PC_to_RDR_XfrBlock)
Response Data Format (abData field in the RDR_to_PC_DataBlock)
SW1 SW2
Where:
SW1 SW2
= 90 00h if no error
= 63 00h if there are no more retries
Note: After SW1SW2 = 0x9000h has been received, read back the Application Area can check if
the VERIFY_MEMORY_CODE is correct. If all data in Application Area is erased and is equal to
“0xFFh,” the previous verification is successful.
Pseudo-APDU
CLA INS Error Counter
LEN
Byte
Address
MEM_L
CODE
Byte 1 Byte 2 Byte 3
Byte 4
FFh
20h
40h
28h
04h