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Memory
START ADDRESS OF FLASH
Refer to
Table 2-2
for examples of the protect start address.
BPR[7:0]
$01 (0000 0001)
$02 (0000 0010)
$FE (1111 1110)
Note: The end address of the protected range is always $FFFF.
2.8.7 Wait Mode
Putting the MCU into wait mode while the FLASH is in read mode does not affect the operation of the
FLASH memory directly, but there will not be any memory activity since the CPU is inactive.
The WAIT instruction should not be executed while performing a program or erase operation on the
FLASH. Otherwise, the operation will discontinue, and the FLASH will be on standby mode.
2.8.8 Stop Mode
Putting the MCU into stop mode while the FLASH is in read mode does not affect the operation of the
FLASH memory directly, but there will not be any memory activity since the CPU is inactive.
The STOP instruction should not be executed while performing a program or erase operation on the
FLASH, otherwise the operation will discontinue, and the FLASH will be on standby mode
Standby mode is the power-saving mode of the FLASH module in which all
internal control signals to the FLASH are inactive and the current
consumption of the FLASH is at a minimum.
44
1
BLOCK PROTECT
Figure 2-6. FLASH Block Protect Start Address
Table 2-2. Examples of Protect Start Address
$00
$FF
MC68HC908MR32 • MC68HC908MR16 Data Sheet, Rev. 6.1
16-BIT MEMORY ADDRESS
0
0
FLBPR VALUE
Start of Address of Protect Range
The entire FLASH memory is protected.
$8080 (1000 0000 1000 0000)
$8100 (1000 0001 0000 0000)
and so on...
$FF00 (1111 1111 0000 0000)
The entire FLASH memory is not protected.
NOTE
0
0
0
0
0
Freescale Semiconductor
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