UM0470 datasheet(21/37 Pages) STMICROELECTRONICS

Part #	UM0470

Description	STM8 SWIM communication protocol and debug module

PDF	37 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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21 / 37 page

UM0470

Debug module (DM)

21/37

1001

Data Read on @=BK1 or @=BK2

10 or 01 or 11

1001

Data R/W on @=BK1 or @=BK2

10 or 01 or 11

0/1

1010

Instruction fetch on @=BK1 or @=BK2

10 or 01 or 11

1010

Instruction fetch on @=BK1 / Data Write on @=BK2

10 or 01

x-0

1011

Instruction fetch on @=BK1 / Data Read on @=BK2

10 or 01

x-1

1011

Instruction fetch on @=BK1 / Data R/W on @=BK2

10 or 01

x-0/1

110

Disabled

1110

Data Write in Stack on @<=BK1 / Instruction fetch on @=BK2

10 or 01

0-x

1110

Data Write in Stack on @<=BK1 / Data Write on @=BK2

10 or 01 or 11

1111

Data Write in Stack on @<=BK1 / Data Read on @=BK2

10 or 01

0-1

1111

Data Write in Stack on @<=BK1 / Data R/W on @=BK2

10 or 01 or 11

0-0/1

Table 4.

Decoding table for breakpoint interrupt generation

DM_CR1

BREAK CONDITIONS

DM_CSR1

BC2

BC1

BC0

BIR

BIW

BK1F BK2F BRW

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