TLE8262E Datasheet, PDF (74/93 Pages) Infineon Technologies AG – Universal System Basis Chip HERMES Rev. 1.0

TLE8262E
Serial Peripheral Interface
15.5.2 SBC Configuration Setting and Read Out
15.5.2.1 Mode selection bits and configuration select
Table 14 lists the encoding of the possible SBC mode. Except SBC Restart and Init Mode which are most of time
entered automatically, all others SBC mode are accessible on request of the microcontroller. The microcontroller
should send the correct mode selection bits to set the SBC in the respective mode. The output indicates the SBC
mode where the SBC currently is or was, depending on the situation.
Table 14 Mode Selection Bits
MS2 MS1 MS0 Data Input
Data Output
0 00
Not valid (the complete SPI word is ignored) Show the device was in Init previous SPI data
0 01
Set the SBC to SBC Restart Mode.
(In SW Flash mode only)
Show the device was in Restart previous SPI
data
0 10
Set the SBC to Software Flash Mode
Show the device is SBC Software Flash Mode
0 11
Set the SBC to SBC Normal Mode
Show the device is in SBC Normal Mode
1 00
Set the SBC to SBC Sleep Mode
Show the device was in SBC Sleep Mode
1 01
Set the SBC to SBC Stop Mode
Show the device is in SBC Stop Mode
1 10
Set the SBC to SBC Fail-Safe Mode
Show the device was in SBC Fail-Safe Mode
(In SBC Software Development mode only)
1 11
Set the SBC to Read Only SPI access. The Reserved
configuration register needs to be selected.
The SPI information on SDO is provided in
the same SPI frame. No write access is
done in this mode.
Bit 15 (Watchdog) has to be served
correctly.
Table 15 lists the eight possible configuration selection. Some are related to event or state of the different part of
the SBC, others are used to configure the SBC in the application specific set up.
Table 15 Configuration Select Encoder (for Data Input and Output)
CS2 CS1 CS0 Configuration Register Select
0
0
0
Wake Register Interrupt
0
0
1
SBC Failure Interrupt
0
1
0
Communication Failure Interrupt
0
1
1
Reserved
1
0
0
SBC Configuration Register
1
0
1
Communication Setup Register
1
1
0
Watchdog Configuration Register
1
1
1
Limp Home / Diagnosis Register
Data Sheet
74
Rev. 1.0, 2009-03-31