MC908GR32AVFAE Datasheet, PDF(57/314 Page) Freescale Semiconductor, Inc – Microcontrollers

English

English German Russian Spanish Italian Polish Chinese Japanese Korean French Portuguese	Language :

MC908GR32AVFAE Datasheet, PDF (57/314 Pages) Freescale Semiconductor, Inc – Microcontrollers

◁

Algorithm for programming

a row (64 bytes) of FLASH memory

FLASH-2 Memory (FLASH-2)

1

SET PGM BIT

2

READ THE FLASH BLOCK

PROTECT REGISTER

3 WRITE ANY DATA TO ANY FLASH

ADDRESS WITHIN THE ROW

ADDRESS RANGE DESIRED

4

WAIT FOR A TIME, tNVS

5

SET HVEN BIT

6

WAIT FOR A TIME, tPGS

7

WRITE DATA TO THE FLASH

ADDRESS TO BE PROGRAMMED

8

WAIT FOR A TIME, tPROG

COMPLETED

YES

PROGRAMMING

THIS ROW?

NO

10

CLEAR PGM BIT

11

WAIT FOR A TIME, tNVH

NOTES:

12

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

the time between the last FLASH address programmed to clearing

PGM bit (step 7 to step10) must not exceed the maximum

13

programming time, tPROG, maximum.

This row program algorithm assumes the row/s to be

programmed are initially erased.

CLEAR HVEN BIT

WAIT FOR A TIME, tRCV

END OF PROGRAMMING

Figure 2-10. FLASH-2 Programming Algorithm Flowchart

MC68HC908GR60A â¢ MC68HC908GR48A â¢ MC68HC908GR32A Data Sheet, Rev. 5

Freescale Semiconductor

57

▷