Document Version 1.00
Last revised on
Page 46 of 87
2020-04-10
Reference Manual for uTrust 3720F and uTrust 3721F Readers
Where P2 codes the address of the memory byte in the following way:
Bit numbers
Description
b7 – b3
Block # (value between 0x0 and 0xE)
b2 – b0
Byte # within the block (value between 0 and 7)
Response APDU:
Data
Status Word
Data returned by card
SW1, SW2
6.2.24.
PAPDU_NFC_TYPE1_TAG_RSEG
This command issues a RSEG to read out a complete segment (or block) of the memory within dynamic
memory model.
Please note that this command works only on specific Topaz tags in the dynamic memory model.
Command APDU:
Command
CLA
INS
P1
P2
P3
Data
TYPE1 Tag READ SEGMENT
FF
5A
00
SegAddr 00
-
Where P2 Segment Address is:
Bit numbers
Description
b7 – b4
Segment (0x0 – 0xF)
b2 – b0
0
Response APDU:
Data
Status Word
128 bytes of data
SW1, SW2
6.2.25. PAPDU_NFC_TYPE1_TAG_READ8
This command issues a READ8 to read out a block of eight bytes.
Please note that this command only works on Topaz tags in dynamic memory model.
Command APDU:
Command
CLA
INS
P1
P2
P3
Data
TYPE1 Tag READ BLOCK
FF
5C
00
Block Addr
00
-
Where P2 Block Address is:
Bit numbers
Description
b7 – b0
General block (0x00 -0xFF)
