MC68HC908AZ60 Datasheet, PDF (51/480 Pages) Motorola, Inc – HCMOS Microcontroller Unit

FLASH-1 Memory
FLASH-2 Block Protect Register
BPR3 — Block Protect Register Bit 3
This bit protects the memory contents in the address range $4000 to
$7FFF.
1 = Address range protected from erase or program
0 = Address range open to erase or program
BPR2 — Block Protect Register Bit 2
This bit protects the memory contents in the address range $2000 to
$7FFF.
1 = Address range protected from erase or program
0 = Address range open to erase or program
BPR1 — Block Protect Register Bit 1
This bit protects the memory contents in the address range $1000 to
$7FFF.
1 = Address range protected from erase or program
0 = Address range open to erase or program
BPR0 — Block Protect Register Bit 0
This bit protects the memory contents in the address range $0450 to
$7FFF.
1 = Address range protected from erase or program
0 = Address range open to erase or program
By programming the block protect bits, a portion of the memory will be
locked so that no further erase or program operations may be
performed. Programming more than one bit at a time is redundant. If
both bit 1 and bit 2 are set, for instance, the address range $1000
through $FFFF is locked. If all bits are erased, then all of the memory is
available for erase and program. The presence of a voltage V_HI on the
IRQ pin will bypass the block protection so that all of the memory,
including the block protect register, is open for program and erase
operations.
15-flash-1
MOTOROLA
FLASH-1 Memory
MC68HC908AZ60 — Rev 2.0
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