2.3 Read Binary Blocks. Advanced Card Systems V5MACR1222U, ACR1222 U

2.3 Read Binary Blocks

The “Read Binary Blocks command” is used for retrieving a multiple of “data blocks” from the

PICC. The data block/trailer block must be authenticated first before executing the “Read Binary

Blocks command”.

Table 2.3-1a: Read Binary APDU Format (5 Bytes)

Command Class INS P1

Read Binary

Blocks

FF B0 00

P2

Block

Number

Le

Number of Bytes to Read

Block Number (1 Byte):

The starting block.

Number of Bytes to Read (1 Byte):

Multiply of 16 bytes for MIFARE 1K/4K or Multiply of 4 bytes for MIFARE Ultralight

• Maximum 16 bytes for MIFARE Ultralight.

• Maximum 48 bytes for MIFARE 1K. (Multiple Blocks Mode; 3 consecutive blocks)

• Maximum 240 bytes for MIFARE 4K. (Multiple Blocks Mode; 15 consecutive blocks)

Example 1: 0x10 (16 bytes). The starting block only. (Single Block Mode)

Example 2: 0x40 (64 bytes). From the starting block to starting block+3. (Multiple Blocks Mode)

#For safety reason, the Multiple Block Mode is used for accessing Data Blocks only. The Trailer

Block is not supposed to be accessed in Multiple Blocks Mode. Please use Single Block Mode to access the Trailer Block.

Table 2.3-1b: Read Binary Block Response Format (Multiply of 4/16 + 2 Bytes)

Response Data Out

Result Data (Multiply of 4/16 Bytes) SW1 SW2

Table 2.3-1c: Read Binary Block Response Codes

SW1 SW2 Results

Success 90 00

Error 63 00

Meaning

The operation is completed successfully.

The operation is failed.

Examples:

// Read 16 bytes from the binary block 0x04 (MIFARE 1K or 4K)

APDU = {FF B0 00 04 10}

// Read 240 bytes starting from the binary block 0x80 (MIFARE 4K)

// Block 0x80 to Block 0x8E (15 blocks)

APDU = {FF B0 00 80 F0}

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