mc68hc08qa24 Freescale Semiconductor, Inc, mc68hc08qa24 Datasheet - Page 87

• Manufacturer Part Number: mc68hc08qa24
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

7.4.4 Program Counter
MC68HC08QA24
Freescale Semiconductor
Reset:
Read:
Write:
The program counter (PC) is a 16-bit register that contains the address
of the next instruction or operand to be fetched.
Normally, 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.
During reset, the program counter is loaded with the reset vector
address located at $FFFE and $FFFF. The vector address is the
address of the first instruction to be executed after exiting the reset state.
Bit
15
14
Central Processor Unit (CPU)
13
Figure 7-5. Program Counter (PC)
12
11
Loaded with vector from $FFFE and $FFFF
10
9
8
7
6
Central Processor Unit (CPU)
5
4
3
Technical Data
2
1
Bit
0
85