MC68HC705 MOTOROLA [Motorola, Inc], MC68HC705 Datasheet - Page 42

• Manufacturer Part Number: MC68HC705
• Description: HCMOS Microcontroller Unit
• Manufacturer: MOTOROLA [Motorola, Inc]

Central Processor Unit (CPU)
3.3 CPU Registers
Technical Data
42
Figure 3-1
within the CPU and are not part of the memory map.
Bit 12 11
Bit 12 11
0
0
10
10
0
shows the five CPU registers. These are hard-wired registers
Central Processor Unit (CPU)
CARRY/BORROW FLAG
9
0
9
HALF-CARRY FLAG
INTERRUPT MASK
NEGATIVE FLAG
8
0
8
Figure 3-1. Programming Model
ZERO FLAG
Bit 7
Bit 7
Bit 7
7
1
7
1
6
6
6
1
6
6
1
5
5
5
5
5
1
H
4
4
4
4
4
3
3
3
3
3
I
N
2
2
2
2
2
1
1
1
1
1
Z
Bit 0
Bit 0
Bit 0
Bit 0
Bit 0
C
MC68HC705C8A — Rev. 2.0
INDEX REGISTER (X)
STACK POINTER (SP)
PROGRAM COUNTER (PC)
CONDITION CODE REGISTER (CCR)
ACCUMULATOR (A)
MOTOROLA