ACS ACR1283L - Manual (Page 27)

ACR1283L – Reference Manual [email protected]
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integer (4 bytes).
Example 1: Decimal –4 = {0xFFh, 0xFFh, 0xFFh, 0xFCh}
VB_Value
MSB LSB
FFh FFh FFh FCh
Example 2: Decimal 1 = {0x00h, 0x00h, 0x00h, 0x01h}
VB_Value
MSB LSB
00h 00h 00h 01h
Value Block Operation Response Format (2 Bytes)
Response Data Out
Result SW1 SW2
Value Block Operation Response Codes
Results SW1 SW2 Meaning
Success 90 00h The operation is completed successfully.
Error 63 00h The operation is failed.
5.3.2.2.6. Read Value Block
This command is used for retrieving the value from the value block. It is only valid for value block.
Read Value Block APDU Format (5 Bytes)
Command Class INS P1 P2 Le
Read Value
Block
FFh B1h 00h
Block
Number
00h
Where:
Block Number (1 Byte): The value block to be accessed.
Read Value Block Response Format (4 + 2 Bytes)
Response Data Out
Result
Value
{MSB .. LSB}
SW1 SW2
Where:
Value (4 Bytes): The value returned from the card. The value is a signed long integer (4