MC68HC908AP64_07 FREESCALE [Freescale Semiconductor, Inc], MC68HC908AP64_07 Datasheet - Page 129

• Manufacturer Part Number: MC68HC908AP64_07
• Description: Microcontrollers
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

8.5.2 ERARNGE
ERARNGE is used to erase a range of locations in FLASH.
There are two sizes of erase ranges: a page or the entire array. The ERARNGE will erase the page (512
consecutive bytes) in FLASH specified by the address ADDRH:ADDRL. This address can be any address
within the page. Calling ERARNGE with ADDRH:ADDRL equal to $FFFF will erase the entire FLASH
array (mass erase). Therefore, care must be taken when calling this routine to prevent an accidental mass
erase.
The ERARNGE routine do not use a data array. The DATASIZE byte is a dummy byte that is also not
used.
The coding example below is to perform a page erase, from $EE00–$EFFF. The Initialization subroutine
is the same as the coding example for PRGRNGE (see
ERARNGE
MAIN:
Freescale Semiconductor
BSR
:
:
LDHX
JSR
:
Routine Description
Data Block Format
EQU
INITIALISATION
#FILE_PTR
ERARNGE
Calling Address
Routine Name
Stack Used
$FCE4
MC68HC908AP Family Data Sheet, Rev. 4
Table 8-12. ERARNGE Routine
ERARNGE
Erase a page or the entire array
$FCE4
9 bytes
Bus speed (BUS_SPD)
Data size (DATASIZE)
Starting address (ADDRH)
Starting address (ADDRL)
8.5.1
PRGRNGE).
ROM-Resident Routines
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