User's Manual

ACR1281U

 Advanced Card Systems Ltd. Page 49 of 81

Byte Address = A7A6A5A4 A3A2A1A0 b is the memory address location of the memory card.

= 1000 0000 b for writing fuse

MEM_L Length of data to be written to the memory card.

Byte x Data to be written to the memory card.

• Response data format

SW1 SW2

• SW1, SW2 = 90 00 if no error

4.4 Verify Password

• Command format

Pseudo-APDU

CLA INS P1 P2 Lc Data

RP Pw(0) Pw(1)

Pw(2)

Pw(0),Pw(1),Pw(2) Passwords to be sent to memory card.

RP = 0000 rp2p1p0 b

where the four bits “rp2p1p0” indicate the password to compare:

r = 0: Write password,

r = 1: Read password,

p2p1p0: Password set number.

(rp2p1p0 = 0111 for the secure code).

• Response data format

SW1 SW2

ErrorCnt

• SW1 = 90

• SW2 (ErrorCnt) = Error Counter. FF indicates the verification is correct. 00 indicates the

password is locked (exceed maximum number of retries). Other values indicate the current

verification is failed.

4.5 Initialize Authentiction

• Command format

Pseudo-APDU

CLA INS P1 P2 Lc

Q(0) Q(1) … Q(7)