Freescale Semiconductor MC68HC08KH12 - Manual (Page 53)

MC68HC(7)08KH12 — Rev. 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
V 1 1 H I N Z C
H X
0
0
0
0
7
15
15
15
7 0
Bit 7 6 5 4 3 2 1 Bit 0
Read:
Write:
Reset: Unaffected by reset
Figure 6-2. Accumulator (A)