UM0470

Debug module (DM)

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4.12.12

Summary of SWIM, DM and core register maps

Table 5.

STM8 registers

STM8

Address

Register

Name

76

5

4

3

2

1

0

7F00h

A

Reset value

A7

0

A6

0

A5

0

A4

0

A3

0

A2

0

A1

0

A0

0

7F01h

PC23

PC22

PC21

PC20

PC19

PC18

PC17

PC16

7F02h

PCH(1)

PC15

PC14

PC13

PC12

PC11

PC10

PC9

PC8

7F03h

PCL(1)

PC7

PC6

PC5

PC4

PC3

PC2

PC1

PC0

7F04h

XH

Reset value

X15

0

X14

0

X13

0

X12

0

X11

0

X10

0

X9

0

X8

0

7F05h

XL

Reset value

X7

0

X6

0

X5

0

X4

0

X3

0

X2

0

X1

0

X0

0

7F06h

YH

Reset value

Y15

0

Y14

0

Y13

0

Y12

0

Y11

0

Y10

0

Y9

0

Y8

0

7F07h

YL

Reset value

Y7

0

Y6

0

Y5

0

Y4

0

Y3

0

Y2

0

Y1

0

Y0

0

7F08h

SPH(1)

SP15

SP14

SP13

SP12

SP11

SP10

SP9

SP8

7F09h

SPL(1)

SP7

SP6

SP5

SP4

SP3

SP2

SP1

SP0

7F0Ah

CC

Reset value

V

0

-

0

I1

1

H

0

I0

1

N

0

Z

0

C

0

7F80h

SWIM_CSR

Reset value

SAFE_MASK

0

NO_ACCESS

0

SWIM_DM

0

HS

0

OSCOFF

0

RST

0

HSIT

0

PRI

0

7F90h

DM_BK1RE

Reset value

BK1R23

1

BK1R22

1

BK1R21

1

BK1R20

1

BK1R19

1

BK1R18

1

BK1R17

1

BK1R16

1

7F91h

DM_BK1RH

Reset value

BK1R15

1

BK1R14

1

BK1R13

1

BK1R12

1

BK1R11

1

BK1R10

1

BK1R9

1

BK1R8

1

7F92h

DM_BK1RL

Reset value

BK1R7

1

BK1R6

1

BK1R5

1

BK1R4

1

BK1R3

1

BK1R2

1

BK1R1

1

BK1R0

1

7F93h

DM_BK2RE

Reset value

BK2R23

1

BK2R22

1

BK2R21

1

BK2R20

1

BK2R19

1

BK2R18

1

BK2R17

1

BK2R16

1

7F94h

DM_BK2RH

Reset value

BK2R15

1

BK2R14

1

BK2R13

1

BK2R12

1

BK2R11

1

BK2R10

1

BK2R9

1

BK2R8

1

7F95h

DM_BK2RL

Reset value

BK2R7

1

BK2R6

1

BK2R5

1

BK2R4

1

BK2R3

1

BK2R2

1

BK2R1

1

BK2R0

1

7F96h

DM_CR1

Reset value

WDGOFF

0

Reserved

0

BC2

0

BC1

0

BC0

0

BIR

0

BIW

0

Reserved

0

7F97h

DM_CR2

Reset value

Reserved

FV_ROM

0

Reserved

0

FV_RAM

0

7F98h

DM_CSR1

Reset value

Reserved

0

STE

0

STF

0

RST

0

BRW

0

BK2F

0

BK1F

0

Reserved

0

7F99h

DM_CSR2

Reset value

Reserved

0

Reserved

0

SWBKE

0

SWBKF

0

STALL

0

Res

Reserved

0

FLUSH

0

7F9Ah

DM_ENFCTR

Reset value

ENFCT7

1

ENFCT6

1

ENFCT5

1

ENFCT4

1

ENFCT3

1

ENFCT2

1

ENFCT1

1

ENFCT0

1

1.

The reset value for the SP and PC registers is product dependent. Refer to the device datasheet for more details