XC68HC705JJ7 Motorola, XC68HC705JJ7 Datasheet - Page 36

• Manufacturer Part Number: XC68HC705JJ7
• Description: MICROCONTROLLER
• Manufacturer: Motorola

Memory
2.3 Memory Map
2.4 Input/Output Registers
Advance Information
36
The central processor unit (CPU) can address 8 kilobytes of memory
space as shown in
Figure 2-2
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The erasable programmable read-only memory (EPROM) portion
of memory holds the program instructions, fixed data,
user-defined vectors, and interrupt service routines.
The random-access memory (RAM) portion of memory holds
variable data.
Input/output (I/O) registers are memory mapped so that the CPU
can access their locations in the same way that it accesses all
other memory locations.
The first 32 addresses of the memory space, $0000–$001F,
containing the I/O registers section
One I/O register located outside the 32-byte I/O section, which is
the computer operating properly register (COPR) mapped at
$1FF0
and
Figure 2-3
$1EFF
Figure
Memory
Figure 2-1. Memory Map
2-1. The memory map includes:
summarize:
MC68HC705JJ7 • MC68HC705JP7 — REV 4
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