This manual introduces the C167 derivatives 16-bit CMOS single-chip microcontrollers functions and applications.
This manual describes the functionality of the Siemens C167‑class 16‑bit CMOS microcontrollers, covering a range of derivatives such as C167CR, C167SR and C167S. It explains the high‑performance architecture, integrated peripherals, and design considerations for real‑time embedded control applications.
The document includes sections on CPU design, memory organization, interrupt handling, serial interfaces, timer units, watchdog timer, and on‑chip CAN interface, as well as programming guidelines and system reset procedures.
| Architecture | 16‑bit CMOS single‑chip microcontroller |
|---|---|
| On‑chip XRAM | 2 KB |
| CAN module | Integrated |
| ROM size | up to 128 KB |
| Watchdog Timer | Provides system reset on failure |
The manual covers C167CR‑LM, C167CR‑4RM, C167CR‑16RM, C167CR‑16FM, C167SR‑LM, C167S‑4RM, and the basic C167‑LM versions.
The Watchdog Timer (WDT) monitors the system and forces a reset if the software fails to service it, helping to recover from faults.