mc68hc908mr24 Freescale Semiconductor, Inc, mc68hc908mr24 Datasheet - Page 39
mc68hc908mr24
Manufacturer Part Number
mc68hc908mr24
Description
M68hc08 Microcontrollers
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC68HC908MR24.pdf
(406 pages)
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Advance Information — MC68HC908MR24
2.1 Contents
2.2 Introduction
2.3 Unimplemented Memory Locations
MC68HC908MR24 — Rev. 4.1
Freescale Semiconductor
2.2
2.3
2.4
2.5
2.6
The CPU08 can address 64 Kbytes of memory space. The memory
map, shown in
Some addresses are unimplemented. Accessing an unimplemented
address can 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
•
•
•
•
24 Kbytes of FLASH
768 bytes of random-access memory (RAM)
46 bytes of user-defined vectors
240 bytes of monitor read-only memory (ROM)
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Unimplemented Memory Locations . . . . . . . . . . . . . . . . . . . . . 39
Reserved Memory Locations . . . . . . . . . . . . . . . . . . . . . . . . . . 40
I/O Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Monitor ROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
Figure
Memory Map
2-1, includes:
Section 2. Memory Map
Advance Information
39
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