mc68hc05j1avp Freescale Semiconductor, Inc, mc68hc05j1avp Datasheet - Page 35
mc68hc05j1avp
Manufacturer Part Number
mc68hc05j1avp
Description
M68hc05 Microcontrollers
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC68HC05J1AVP.pdf
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3.3.1 Accumulator
3.3.2 Index Register
MC68HC05J1A — Rev. 3.0
MOTOROLA
The accumulator (A) shown in
register. The CPU uses the accumulator to hold operands and results of
arithmetic and non-arithmetic operations.
Reset:
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.
Reset:
Read:
Read:
Write:
Write:
Freescale Semiconductor, Inc.
For More Information On This Product,
Bit 7
Bit 7
Central Processor Unit (CPU)
9.3.7 Indexed, 16-Bit Offset
Go to: www.freescale.com
6
6
9.3.5 Indexed, No
Figure 3-3. Index Register (X)
Figure 3-2. Accumulator (A)
Figure 3-3
5
5
Figure 3-2
Unaffected by reset
Unaffected by reset
to determine the conditional address of
4
4
Offset,
for more information on
3
3
is a general-purpose 8-bit
9.3.6 Indexed, 8-Bit
Central Processor Unit (CPU)
2
2
1
1
CPU Registers
Technical Data
Bit 0
Bit 0
35
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