AN2156 Freescale Semiconductor / Motorola, AN2156 Datasheet - Page 81

• Manufacturer Part Number: AN2156
• Description: Programming and Erasing FLASH and EEPROM Memories on the MC68HC908AS60A/AZ60A
• Manufacturer: Freescale Semiconductor / Motorola

$INCLUDE
LIST
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Start:
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$INCLUDE
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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*
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* File Name: AutoEEPROM.var
*
* Current Revision: 1.0
* Current Release Level: RP
* Current Revision Release Date: 6/21/2000
*
* Current Release Written By: Adeela Gill and Kazue Kikuchi
AN2156
MOTOROLA
EEPROM AUTO Programming and Erasing on the MC68HC908AS60A/AZ60A
org
org
mov
lda
sta
lda
sta
sta
lda
sta
sta
lda
sta
ldhx
sthx
lda
jsr
lda
jsr
bra
ram1
"AutoEEPROM.var"
ram2
#$71,config-1
#$98
config-2
#$80
EE1DIVH
EE2DIVH
#$56
EE1DIVL
EE2DIVL
#$55
data
#$0634
EEPROM_addr
#auto_bulkerase.
AutoRoutine
#auto_byteprogram.
AutoRoutine
*
"AutoEEPROM.srt"
Subroutine Body Includes Section
Freescale Semiconductor, Inc.
For More Information On This Product,
;RAM variable definitions
;Turn off the COP, but leave the LVI on
;Select bus clock as reference clock
; source
;For setting a constant timebase of 35us
; write $80 AND $56 to EExDIVH and
; EExDIVL, respectively
; Note: If the EExDIVHNVR and EExDIVLNVR
;
;
;Write data $55 to RAM buffer
;Load EEPROM_addr with address of where
; the byte should be erased and programmed
;Select Bulk, Block or Byte Erase
;Erase the selected EEPROM size using AUTO
; Mode
;Select Byte Program
;Program one byte using AUTO Mode
Main Routine
Go to: www.freescale.com
registers are programmed with proper
values, this step is not necessary
;Auto EEPROM subroutines
Copyright (c) Motorola 2001
EEPROM AUTO Mode Assembly Source Code
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Application Note
81