M68ICS08GR datasheet(166/408 Pages) FREESCALE

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Flash Memory

Technical Data

MC68HC908GR8 — Rev 4.0

166

Flash Memory

MOTOROLA

Examples of protect start address:

11.9 Wait Mode

Putting the MCU into wait mode while the FLASH is in read mode does

not affect the operation of the FLASH memory directly, but there will not

be any memory activity since the CPU is inactive.

The WAIT instruction should not be executed while performing a

program or erase operation on the FLASH, otherwise the operation will

discontinue, and the FLASH will be on Standby Mode.

11.10 STOP Mode

Putting the MCU into stop mode while the FLASH is in read mode does

not affect the operation of the FLASH memory directly, but there will not

be any memory activity since the CPU is inactive.

The STOP instruction should not be executed while performing a

program or erase operation on the FLASH, otherwise the operation will

discontinue, and the FLASH will be on Standby Mode

NOTE:

Standby Mode is the power saving mode of the FLASH module in which

all internal control signals to the FLASH are inactive and the current

consumption of the FLASH is at a minimum.

Table 11-1. Examples of protect start address:

BPR[7:0]

Start of Address of Protect Range

$80

The entire FLASH memory is protected.

$81 (1000 0001)

$E040 (1110 0000 0100 0000)

$82 (1000 0010)

$E080 (1110 0000 1000 0000)

and so on...

$FE (1111 1110)

$FF80 (1111 1111 1000 0000)

$FF

The entire FLASH memory is not protected.

Note:

The end address of the protected range is always $FFFF.

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com

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