MLX90129 View Datasheet(PDF) - Melexis Microelectronic Systems
Part Name
Description
Manufacturer
MLX90129 Datasheet PDF : 60 Pages
| |||
MLX90129
13.56MHZ SENSOR TAG / DATALOGGER IC
Command set
The command set lists the mandatory commands defined in the standard ISO-15693 layer 3. It comprises also some custom
commands used for some specific applications: access the sensor buffer, access an external device via SPI, handles the security
options, etc.
ISO-15693 mandatory and optional commands
Commands
Inventory
Stay quiet
Read single block
Write single
block
Read multiple
block
Select
Reset to ready
code Description
01 Enable an anti-collision sequence
02 Enable the ‘Stay Quiet’ mode
20 Read a single word from EEPROM
21 Write a single word to EEPROM (only mode with Option_flag set is
supported)
23 Read one or several contiguous blocks of the EEPROM
25 Enter the “Selected” state (anti-collision)
26 Return to the ‘Ready’ mode
MLX90129 custom commands
Commands
code
Read register file
A01F
Write register file
A11F
Read internal device A21F
Write internal device A31F
Read
external A41F
memory
Write
external A51F
memory
Send
specific A61F
command
Send
addressed A71F
specific command
Write
external A81F
memory status
Read
external A91F
memory status
Lock device
B01F
Unlock device
B11F
Update Register File C01F
Lock Page
D01F
Unlock Page
D11F
Description
Read one word from the Register file
Write one word to the Register file
Read the content of an internal device identified by an address byte
Write the register word of an internal device, identified by an address byte
Read a word from an external memory (via SPI)
Write a word into an external memory (via SPI)
Send a command via SPI to an external device, whose code is appended to
the frame (e.g. Write Enable for an external EEPROM).
Send a command via SPI to an external device, whose code and address are
appended to the frame (e.g. Lock Block for an external EEPROM)
Send a command via SPI, to write an external memory status register
(The op-code of this command is stored in a register)
Send a command via SPI, to read an external memory status register
(The op-code of this command is stored in a register)
Lock an internal device (EEPROM, ADC, …), preventing its access.
Unlock an internal device
Fill the Register File with the image from the EEPROM, without re-boot
Lock a page of EEPROM
Unlock a locked page of EEPROM.
0x1F corresponds to the RFID manufacturer code of Melexis
REVISION 011 - JUNE 13, 2017
3901090129
Page 23 of 60
Share Link: 