DVK90129 Melexis Inc, DVK90129 Datasheet - Page 25

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DVK90129

Manufacturer Part Number
DVK90129
Description
DEVELOPMENT KIT MLX90129
Manufacturer
Melexis Inc
Series
-r
Type
Development kitr
Datasheets

Specifications of DVK90129

Contents
Board, Proxima RF™ Desktop Reader
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
For Use With/related Products
MLX90129
Response error code
If the flag Error_flag of the response is set by the MLX90129, the error code is transmitted to provide some
information about the error that occurred. Most of them are described in the standard ISO15693. The last
ones are some custom codes.
performing the last write operation. Then, the base-station has to wait for some time and send the command
again. For read operation, it means that the selected Internal device (sensor ADC,…) cannot read the data
and respond immediately.
The purpose of the address #11 in EEPROM is user-defined.
8.1.3 RFID interruptions
The Internal device domain contains registers with MLX90129 status information. It can be accessed with the
command Read Internal Device.
The following words are part of the Internal Device domain:
RFID core control word (Devices address domain, address #00, read/write)
3901090129
Rev 007
(*) “Device is busy” error code occurring during a write operation means that the MLX90129 is still
Bits
#00 – RFID core control word
15:1
0
Error
code
01
02
03
0F
10
11
12
A0
A1
A2
The RFID core control word is read/write. It contains a bit used to lock the non-RFID transactions.
The RFID interrupt & status word is read-only. it contains the status of the security units, of the
pending accesses to the memories, and of the system current activity.
Name
-
Core_Lock
Meaning
The command is not supported, i.e. the request code is not recognized
The command is not recognized, for example: a format error occurred
The option is not supported
Unknown error
The specified block is not available (does not exist)
The specified block is already locked and thus cannot be locked again
The specified block is locked and its content cannot be changed
The selected Device is locked
The selected Device is busy (*)
The access to the selected Device is denied
Description (if bit=1)
Unused (must be 0)
When set to ‘1’, it locks any transactions managed by the DMA. This allows having an
access from RFID to any device at any time. If base station sets this bit into one, but
last transaction inside core is not yet accomplished, this transaction is not interrupted.
This signal doesn’t block SPI. Priority of this signal is less then priority of such signal
in SPI control word, more over SPI can block affection of this signal (via RFID security
map configuration register).
13.56MHZ SENSOR TAG / DATALOGGER IC
Page 25 of 56
MLX90129
Command
All
All
All
All
Read/Write/Lock
Lock
Write
Write memory
Read/Write
memory
Read/Write
memory
Data Sheet
March 2011

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