Freescale Semiconductor MC68HC08KH12 Manual do Utilizador Página 53

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MC68HC(7)08KH12Rev. 1.1 Advance Information
Freescale Semiconductor
53
Figure 6-1. CPU Registers
6.4.1 Accumulator (A)
The accumulator is a general-purpose 8-bit register. The CPU uses the
accumulator to hold operands and the results of arithmetic/logic
operations.
ACCUMULATOR (A)
INDEX REGISTER (H:X)
STACK POINTER (SP)
PROGRAM COUNTER (PC)
CONDITION CODE REGISTER (CCR)
CARRY/BORROW FLAG
ZERO FLAG
NEGATIVE FLAG
INTERRUPT MASK
HALF-CARRY FLAG
TWO’S COMPLEMENT OVERFLOW FLAG
V11HINZC
H X
0
0
0
0
7
15
15
15
70
Bit 7654321Bit 0
Read:
Write:
Reset: Unaffected by reset
Figure 6-2. Accumulator (A)
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