STM8S103xx, STM8S105xx
Product overview
4.2
Single wire interface module (SWIM) and debug module (DM)
The single wire interface module and debug module and permit non-intrusive, real-time in-
circuit debugging and fast memory programming.
SWIM
Single wire interface module for direct access to the debug module and memory
programming. The interface can be activated in all device operation modes. The maximum
data transmission speed is 145 bytes/ms.
Debug module
The non-intrusive debugging module features a performance close to a full-featured
emulator. Beside memory and peripherals, also CPU operation can be monitored in real-
time by means of shadow registers.
● R/W to RAM and peripheral registers in real-time
● R/W access to all resources by stalling the CPU
● Breakpoints on all program-memory instructions (software breakpoints)
● 2 advanced breakpoints, 23 predefined configurations
4.3
Interrupt controller
● Nested interrupts with 3 software priority levels
● 32 interrupt vectors with hardware priority
● Up to 37 external interrupts on 6 vectors including TLI
● Trap and reset interrupts
4.4
Flash program memory
● Up to 32 Kbytes of program single voltage Flash memory
● User option byte area
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