TLE8262E datasheet(79/93 Pages) INFINEON

79 / 93 page

Data Sheet

Rev. 1.0, 2009-03-31

TLE8262E

Serial Peripheral Interface

15.5.3

SBC Diagnostic encoder

The SBC offers diagnostics information. The encoding of the different possible failures are listed in the following

table. The description apply only to data output.

15.5.3.1 Reason for restart and reset

Reason for reset, without activation of the Limp Home and the way it is encoded are summed up in Table 21. The

bits are cleared by reading the register with Read-Only command. When coming from Sleep Mode or Fail Safe

Mode the bits are cleared.

Table 20

Watchdog Encoder

Bit 10...6

Decimal calculation (ms)

Timer (ms)

00000

(n+1)

× 16

n = decimal value of

setting

00001

00010

...

01111

256 (default setting)

10000

× 48 - 464

304

10001

352

...

11110

976

11111

1024

Table 21

Reason to Enter SBC Restart Mode without Limp HomeLimp Home activation

RM1

RM0

Cause for entering SBC Restart Mode

No reset has occurred or Limp Home activated

Undervoltage on

cc1µC

First Watchdog failure (config 3 and 4) or no acknowledge of the Cyclic Wake-up

SPI command in SBC Software Flash Mode or reset low from outside

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