Identiv uTrust 4711F - Papdu_Nfc_Type1_Tag_Write_Ne; Papdu_Nfc_Type1_Tag_Rseg

Document Version 1.2
Last revised on
2017-09-26
Page 42 of 92
Reference Manual for uTrust 4701F and uTrust 4711F Readers
6.2.23. PAPDU_NFC_TYPE1_TAG_WRITE_NE
This command issues a WRITE-NE to write a byte value to one byte within the static memory model
area of blocks 0x0-0xE. It does not erase the value of the targeted byte before writing the new data.
Execution time of this command for NFC Forum tags type 1 is approximately half that of the normal
write command (WRITE-E). Using this command, EEPROM bits can only be set, not reset.
Command APDU:
Command
CLA
INS
P1
P2
P3
Data
TYPE1 Tag WRITE No ERASE
FF
58
00
Byte Addr
01
Data
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