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UM0470 Datasheet(PDF) 3 Page - STMicroelectronics

Part # UM0470
Description  STM8 SWIM communication protocol and debug module
PDF  37 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

UM0470 Datasheet(HTML) 3 Page - STMicroelectronics

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UM0470
Contents
3/37
4.5
Software breakpoint mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.6
Timing description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.7
Abort . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.8
Data breakpoint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.9
Instruction breakpoint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.10
Step mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
4.11
Application notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4.11.1
Illegal Memory access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4.11.2
Forbidden stack access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4.11.3
DM break . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4.12
DM registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.12.1
DM breakpoint register 1 extended byte (DM_BKR1E) . . . . . . . . . . . . . 28
4.12.2
DM breakpoint register 1 high byte (DM_BKR1H) . . . . . . . . . . . . . . . . . 28
4.12.3
DM breakpoint register 1 low byte (DM_BKR1L) . . . . . . . . . . . . . . . . . . 28
4.12.4
DM breakpoint register 2 extended byte (DM_BKR2E) . . . . . . . . . . . . . 29
4.12.5
DM breakpoint register 2 high byte (DM_BKR2H) . . . . . . . . . . . . . . . . . 29
4.12.6
DM breakpoint register 2 low byte (DM_BKR2L) . . . . . . . . . . . . . . . . . . 29
4.12.7
DM control register 1 (DM_CR1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
4.12.8
DM control register 2 (DM_CR2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
4.12.9
DM control/status register 1 (DM_CSR1) . . . . . . . . . . . . . . . . . . . . . . . 32
4.12.10
DM control/status register 2 (DM_CSR2) . . . . . . . . . . . . . . . . . . . . . . . 33
4.12.11
DM enable function register (DM_ENFCTR) . . . . . . . . . . . . . . . . . . . . . 34
4.12.12
Summary of SWIM, DM and core register maps . . . . . . . . . . . . . . . . . . 35
5
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36



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