E981.07 Datasheet, PDF (28/46 Pages) ELMOS Semiconductor AG – Two independent operating channels

Two Channel Sensor Interface PSI5
ADVANCE PRODUCT INFORMATION JUL 26, 2011
5.2.5.2 SPI Sensor Data Request / Response Bit Definitions
E981.07
5.2.5.2.1 Sensor Data Request MOSI Bit Definition
Name
SQ2:SQ0
SEN
LC3:LC0
Bit position
15,14,12
13
3:0
Definition
Sequence Identifier-used for synchronising samples
Sensor Bit, defines request as Sensor data request or non sensor data
request
Local channel select
5.2.5.2.2 Sensor Data Response MISO Bit Definition
Name
SQ2:SQ0
P
ST1:ST0
ES1:ES0
OE
ND
CNC
HE
ME
DE
D9:D0
Bit position
15:13
12
11:10
9:8
5
4
3
2
1
0
9:0
Definition
Sequence Identifier-used for synchronising samples
Parity, Ensures odd parity for bits 15:0 of MISO
Status - identifies contents in D9:D0 of MISO (sensor data, self test data, error
etc.)
Exception status – identifies contents of exception data (receiver/ on board
sensor, error status or satellite error)
Over current error, over current of low side driver (short to battery)
No Data (channel specific): Sensor data not available
Condition not correct for operation (channel specific): as defined elsewhere
Request cannot be fulfilled because channel is off, or in the wrong mode etc.
Hardware Error in slave (channel/channel pair specific): caused by hardware
errors defined elsewhere, such as over temperature, over current of high side
driver (short to GND), reference out of range etc.
Manchester Error (channel specific): incorrect number of bits, timing violation
etc. in bit stream
Data Error (channel specific): parity error in manchester data
Sensor data, for ST1:ST0=01
ELMOS Semiconductor AG
Data Sheet 28 / 45
QM-No.: 25DS0050E.00
This document contains information on a new product. ELMOS Semiconductor AG reserves the right to change specifications and information herein without notice.