MC68HC705C8ACS

Manufacturer Part NumberMC68HC705C8ACS
ManufacturerFreescale Semiconductor, Inc
MC68HC705C8ACS datasheet
 
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Freescale Semiconductor, Inc.
3.3.1 Accumulator
The accumulator (A) shown in
register. The CPU uses the accumulator to hold operands and results of
arithmetic and non-arithmetic operations.
Read:
Write:
Reset:
3.3.2 Index Register
In the indexed addressing modes, the CPU uses the byte in the index
register (X) shown in
the operand. See
Offset, and
indexed addressing.
The 8-bit index register also can serve as a temporary data storage
location.
Read:
Write:
Reset:
MC68HC705C8A — Rev. 3
MOTOROLA
For More Information On This Product,
Figure 3-2
Bit 7
6
5
4
Unaffected by reset
Figure 3-2. Accumulator (A)
Figure 3-3
to determine the conditional address of
12.3.5 Indexed, No
12.3.7 Indexed, 16-Bit Offset
Bit 7
6
5
4
Unaffected by reset
Figure 3-3. Index Register (X)
Central Processor Unit (CPU)
Go to: www.freescale.com
Central Processor Unit (CPU)
CPU Registers
is a general-purpose 8-bit
3
2
1
Bit 0
Offset,
12.3.6 Indexed, 8-Bit
for more information on
3
2
1
Bit 0
Technical Data