UM0470 datasheet(31/37 Pages) 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

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31 / 37 page

UM0470

Debug module (DM)

31/37

4.12.8

DM control register 2 (DM_CR2)

Address: 7F97h

Reset value: 0000 0000 (00h)

765

432

Reserved

FV_ROM

Reserved

FV_RAM

Bit 7:3

These bits are reserved and must be kept at 0.

Bit 2

FV_ROM Remap Vector table in ROM.

This bit is set or cleared by software. It remaps the vector table to a ROM location

(product dependent) instead of program memory (usually 8000h).

0: Vector table is in Program Memory area (8000h)

1: Vector table is in ROM memory area (depends on the product)

Bit 1

Reserved, must be kept at 0.

Bit 0

FV_RAM Remap vector table in RAM

This bit is set or cleared by software. It remaps the interrupt vector table to a RAM

location instead of program memory (usually 8000h).

0: Vector table is in Program Memory area (8000h)

1: Vector table is in RAM memory area (address depends on the product)

UM0470 Datasheet(PDF) 31 Page - STMicroelectronics