
4506 Group User’s Manual
i
Table of contents
DESCRIPTION ................................................................................................................................ 1-2
FEATURES ...................................................................................................................................... 1-2
APPLICATION ................................................................................................................................ 1-2
PIN CONFIGURATION .................................................................................................................. 1-2
BLOCK DIAGRAM ......................................................................................................................... 1-3
PERFORMANCE OVERVIEW ....................................................................................................... 1-4
PIN DESCRIPTION ........................................................................................................................ 1-5
MULTIFUNCTION ..................................................................................................................... 1-5
PORT FUNCTION .................................................................................................................... 1-6
PORT BLOCK DIAGRAMS ..................................................................................................... 1-8
DATA MEMORY (RAM) ......................................................................................................... 1-17
INTERRUPT FUNCTION ....................................................................................................... 1-18
EXTERNAL INTERRUPTS .................................................................................................... 1-22
WATCHDOG TIMER .............................................................................................................. 1-30
A-D CONVERTER .................................................................................................................. 1-32
RESET FUNCTION ................................................................................................................ 1-37
RAM BACK-UP MODE .......................................................................................................... 1-40
CLOCK CONTROL ................................................................................................................. 1-45
ROM ORDERING METHOD ....................................................................................................... 1-47
CONTROL REGISTERS .............................................................................................................. 1-51
INSTRUCTIONS ............................................................................................................................ 1-55
SYMBOL .................................................................................................................................. 1-55
INSTRUCTION CODE TABLE ............................................................................................ 1-100
BUILT-IN PROM VERSION ...................................................................................................... 1-102
Table of contents