
Memory
Data Sheet
MC68HLC908QY/QT Family — Rev. 2
38
Memory
MOTOROLA
2.6.7 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, or the operation will discontinue and the FLASH will be
on standby mode.
2.6.8 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, or the operation will discontinue and the FLASH will be
on standby mode
NOTE:
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.
Table 2-2. Examples of Protect Start Address
BPR[7:0]
Start of Address of Protect Range
$00–$B8
The entire FLASH memory is protected.
$B9 (1011 1001)
$EE40 (1110 1110 0100 0000)
$BA (1011 1010)
$EE80 (1110 1110 1000 0000)
$BB (1011 1011)
$EEC0 (1110 1110 1100 0000)
$BC (1011 1100)$EF00 (1110 1111 0000 0000)
and so on...
$DE (1101 1110)
$F780 (1111 0111 1000 0000)
$DF (1101 1111)$F7C0 (1111 0111 1100 0000)
$FE (1111 1110)
$FF80 (1111 1111 1000 0000)
FLBPR, OSCTRIM, and vectors are protected
$FF
The entire FLASH memory is not protected.
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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