mc68hc908mr24 Freescale Semiconductor, Inc, mc68hc908mr24 Datasheet - Page 78

no-image

mc68hc908mr24

Manufacturer Part Number
mc68hc908mr24
Description
M68hc08 Microcontrollers
Manufacturer
Freescale Semiconductor, Inc
Datasheet
Central Processor Unit (CPU)
6.4.4 Program Counter
Advance Information
78
The program counter 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.
Reset:
Read:
Write:
Bit
15
14
Central Processor Unit (CPU)
13
Figure 6-5. Program Counter (PC)
12
Loaded with vector from $FFFE and $FFFF
11
10
9
8
7
6
MC68HC908MR24
5
Freescale Semiconductor
4
3
2
Rev. 4.1
1
Bit
0

Related parts for mc68hc908mr24