STM8AF51XX datasheet(13/100 Pages) STMICROELECTRONICS

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STM8AF61xx, STM8AF51xx

Product overview

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5.2

Single wire interface module (SWIM) and debug module

The single wire interface module, SWIM, together with an integrated debug module, permits

non-intrusive, real-time in-circuit debugging and fast memory programming.

5.2.1

SWIM

Single wire interface for direct access to the debugging module and memory programming.

The interface can be activated in all device operation modes and supports hot-plugging. The

maximum data transmission speed is 145 bytes/ms.

5.2.2

Debug module

The non-intrusive debugging module features a performance close to a full-featured

emulator. Besides memory and peripheral operation, CPU operation can also be monitored

in real-time by means of shadow registers.

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R/W of RAM and peripheral registers in real-time

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R/W for all resources when the application is stopped

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Breakpoints on all program-memory instructions (software breakpoints) except the

vector table

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Two advanced breakpoints and 23 predefined configurations

5.3

Interrupt controller

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Nested interrupts with three software priority levels

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32 interrupt vectors with hardware priority

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Up to 37 external interrupts on five vectors

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Trap and reset interrupts

5.4

Non-volatile memory

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Up to 128 Kbytes of program single voltage Flash memory

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Up to 2 Kbytes true (not emulated) data EEPROM

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Read while write: Writing in the data memory is possible while executing code in the

program memory

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128 user option bytes permit permanent device set up

5.4.1

Architecture

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Array: Up to 128 Kbytes of Flash program memory organized in blocks of 128 bytes

each

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Read granularity: 1 word = 4 bytes

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Write/erase granularity: 1 word (4 bytes) or 1 block (128 bytes) in parallel

Writing, erasing, word and block register management is handled automatically by the

memory interface.

STM8AF51XX Datasheet(PDF) 13 Page - STMicroelectronics

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