mc68hc908mr8 Freescale Semiconductor, Inc, mc68hc908mr8 Datasheet - Page 38

• Manufacturer Part Number: mc68hc908mr8
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Memory Map
2.3 Unimplemented Memory Locations
2.4 Reserved Memory Locations
Technical Data
38
Some addresses are unimplemented. Accessing an unimplemented
address will cause an illegal address reset. In the memory map and in
the input/output (I/O) register summary, unimplemented addresses are
shaded.
Some I/O bits are read-only; the write function is unimplemented. Writing
to a read-only I/O bit has no effect on MCU operation. In register figures,
the write function of read-only bits is shaded. Similarly, some I/O bits are
write-only; the read function is unimplemented. Reading of write-only I/O
bits has no effect on microcontroller unit (MCU) operation. In register
figures, the read function of write-only bits is shaded.
Some addresses are reserved. Writing to a reserved address can have
unpredictable effects on MCU operation. In the memory map and in the
I/O register summary, reserved addresses are marked with the word
reserved.
Some I/O bits are reserved. Writing to a reserved bit can have
unpredictable effects on MCU operation. In register figures, reserved
bits are marked with the letter R.
Memory Map
MC68HC908MR8 — Rev 4.1
Freescale Semiconductor