AN2156 Freescale Semiconductor / Motorola, AN2156 Datasheet - Page 11

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

AN2156
MOTOROLA
The protected range is:
Decreasing the value in the FLxBPR by one increases the protected
range by one page (128 bytes). However, programming the block protect
register with $FE protects a range twice that size, 256 bytes, in the
corresponding array. $FE means that locations $FF00–$FFFF or
$7F00–$7FFF are protected in FLASH-1 or FLASH-2, respectively.
The FLASH memory does not exist at some locations. The block
protection range is unaffected if FLASH memory does not exist in that
range. Refer to the memory map and make sure that the desired
locations are protected.
FLxBPR
Value
Freescale Semiconductor, Inc.
$FD
$FF
$FE
$0B
$0A
$09
$08
$04
$03
$02
$01
$00
For More Information On This Product,
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Go to: www.freescale.com
$FE80–$FFFF
$FF00–$FFFF
$8580–$FFFF
$8500–$FFFF
$8480–$FFFF
$8400–$FFFF
$8200–$FFFF
$8180–$FFFF
$8100–$FFFF
$8080–$FFFF
$8000–$FFFF
No protection
FLASH-1
FLASH Control and Block Protect Registers
$7E80–$7FFF
$7F00–$7FFF
$0580–$7FFF
$0500–$7FFF
$0480–$7FFF
$0450–$7FFF
$0450–$7FFF
$0450–$7FFF
$0450–$7FFF
$0450–$7FFF
$0450–$7FFF
No protection
FLASH-2
Application Note
11