mc68hc05j1a Freescale Semiconductor, Inc, mc68hc05j1a Datasheet - Page 37

• Manufacturer Part Number: mc68hc05j1a
• Description: M68hc05 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

3.3.4 Program Counter
MC68HC05J1A — Rev. 3.0
Reset:
Read:
Write:
Bit
15
0
0
14
0
0
13
0
0
The program counter (PC) shown in
contains the address of the next instruction or operand to be fetched.
The five most significant bits of the program counter are ignored
internally and appear as 00000.
Normally, the address in the program counter automatically increments
to the next sequential memory location every time an instruction or
operand is fetched. Jump, branch, and interrupt operations load the
program counter with an address other than that of the next sequential
location.
12
0
0
Freescale Semiconductor, Inc.
For More Information On This Product,
Figure 3-5. Program Counter (PC)
11
0
0
Central Processor Unit (CPU)
Go to: www.freescale.com
10
9
8
Loaded with vector from $07FE and $07FF
7
6
Figure 3-5
5
4
Central Processor Unit (CPU)
is a 16-bit register that
3
2
CPU Registers
Technical Data
1
Bit
0