MC68HC05P4A Datasheet, PDF (13/72 Pages) Advanced Analogic Technologies – Microcontrollers

MCU Structure
TCMP
TIMER
SYSTEM
OSC1 OSC2
INTERNAL
PROCESSOR
CLOCK
OSCILLATOR
AND DIVIDE
BY ³ 2
TCAP/PD7
PORT D PD5
I/O LINES
PORT DATA
D REG _{DIR REG}
PA0
PA1
PORT A
I/O LINES
PA2 PORT DATA
A REG DIR REG
PA3
PA4
PA5
PA6
PA7
SDO/PB5
PORT B
PORT B DATA
I/O LINES ^{SDI/PB6 REG DIR REG}
SCK/PB7
ACCUMULATOR
INDEX
REGISTER
CONDITION
CODE
REGISTER
STACK
POINTER
PROGRAM
COUNTER
HIGH
PROGRAM
COUNTER
LOW
COP
SYSTEM
RESET
IRQ
CPU
CONTROL
CPU
PC0
PC1
DATA PORT
DIR REG C REG ^PC2
PC3
PORT C
PC4 I/O LINES
PC5
PC6
PC7
ALU
4160 X 8
USER ROM
240 X 8
SELF-CHECK
ROM
176 X 8
RAM
Figure 1-1. Block Diagram
MC68HC05P4A Data Sheet, Rev. 7.1
Freescale Semiconductor
13