MC68HC908JL8 MOTOROLA [Motorola, Inc], MC68HC908JL8 Datasheet - Page 135

• Manufacturer Part Number: MC68HC908JL8
• Description: Motorola reserves the right to make changes without further notice to any products herein
• Manufacturer: MOTOROLA [Motorola, Inc]

9.6.2 ERARNGE
MC68HC908JL8
MOTOROLA
—
Rev. 2.0
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 (64 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. To avoid undesirable routine return addresses after a mass
erase, the ERARNGE routine should not be called from code executed
from FLASH memory. Load the code into an area of RAM before calling
the ERARNGE routine.
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
$EF00–$EF3F. The Initialization subroutine is the same as the coding
example for PRGRNGE (see
ERARNGE
MAIN:
Routine Name
Routine Description
Calling Address
Stack Used
Data Block Format
Freescale Semiconductor, Inc.
For More Information On This Product,
BSR
:
:
LDHX
JSR
:
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Monitor ROM (MON)
EQU
INITIALISATION
#FILE_PTR
ERARNGE
Table 9-12. ERARNGE Routine
ERARNGE
Erase a page or the entire array
$FCBE
9 bytes
Bus speed (BUS_SPD)
Data size (DATASIZE)
Starting address (ADDRH)
Starting address (ADDRL)
$FCBE
9.6.1
PRGRNGE).
ROM-Resident Routines
Monitor ROM (MON)
Technical Data
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