SAB80C515A-5 SIEMENS [Siemens Semiconductor Group], SAB80C515A-5 Datasheet - Page 44

• Manufacturer Part Number: SAB80C515A-5
• Description: 8-Bit CMOS Single-Chip Microcontroller Family
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

5.3
The SAB 80C515A offers two on-chip peripherals which ensure an automatic ’fail-save’ reaction in
cases where the controller’s hardware fails or the software hangs up:
Semiconductor Group
– Programmable Watchdog Timer (WDT) with variable time-out period from 512 s to approx.
– An Oscillator Watchdog (OWD) which monitors the on-chip oscillator and forces the
1.1 seconds at 12 MHz. The SAB 80C515A's WDT is compatible to the SAB 80C515's WDT,
which is not programmable.
microcontroller into the reset state if the on-chip oscillator fails. This unit is new in with respect
to the SAB 80C515.
Fail Save Mechanisms
5-11
On-Chip Peripheral Components