TLE7232G Datasheet, PDF (30/36 Pages) Infineon Technologies AG – SPI Driver for Enhanced Relay Control

SPI Driver for Enhanced Relay Control
SPIDER - TLE 7232G
Serial Peripheral Interface (SPI)
4.4.5 SPI Protocol
The SPI protocol of the SPIDER - TLE 7232G provides two types of registers. The
control registers and the diagnosis registers. After power-on reset, all register bits set to
default values.
SI
Reset Value: xxxx_H
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
CMD
000
ADDR
DATA
Field
CMD
ADDR
DATA
Bits
15:14
10:8
7:0
Type Description
Command
00 Diagnosis only: The requested data is shifted out
at SO. This command does not change any
register setting.
01 Read register: The register content of the
addressed register will be sent in the next frame.
10 Reset registers: All registers are reset to their
default values.
11 Write register: The data of the SI word will be
written to the addressed register.
Address
Pointer to register for read and write command
Data
Data written to or read from register selected by address
ADDR
Data Sheet
30
V1.0, 2005-09-30