MC68HC908GR4MP datasheet(113/286 Pages) FREESCALE

Part #	MC68HC908GR4MP

Description	M68HC08 Microcontrollers

PDF	286 Pages

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Manufacturer	FREESCALE [Freescale Semiconductor, Inc]

Direct Link	http://www.freescale.com

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113 / 286 page

FLASH Program/Read Operation

MC68HC908GR8 • MC68HC908GR4 Data Sheet, Rev. 7

Freescale Semiconductor

113

Figure 11-2. FLASH Programming Flowchart

Set HVEN bit

Read the FLASH block protect register

Write any data to any FLASH address

within the row address range desired

Wait for a time, tnvs

Set PGM bit

Wait for a time, tpgs

Write data to the FLASH address

to be programmed

Wait for a time, tPROG

Clear PGM bit

Wait for a time, tnvh

Clear HVEN bit

Wait for a time, trcv

Completed

programming

this row?

End of programming

The time between each FLASH address change (step 7 to step 7), or

must not exceed the maximum programming

time, tPROG max.

the time between the last FLASH address programmed

to clearing PGM bit (step 7 to step 10)

NOTE:

Algorithm for programming

a row (32 bytes) of FLASH memory

This row program algorithm assumes the row/s

to be programmed are initially erased.

MC68HC908GR4MP Datasheet(PDF) 113 Page - Freescale Semiconductor, Inc