Atari 800 Basic Reference Manual

DECIMAL
HEXADECIMAL
LABEL
LOCATION
LOCATION
COMMENTS AND DESCRIPTIONS
PORTA 54016
D300
PIA Port A Controller jack I/0 ports.
PORTE
54017
D301 PIA
Port B Initialized to hex 3C.
PACTL
54018
D302
Port A Control Register (on Program Recorder 52
= ON,
60 = OFF).
PBCTL
54019
D303
Port B control register.
SKCTL
53775
D20F
Serial Port control register . Bit 2=0 (last key still
pressed).
App en dix 1-3

Atari 800 Specifications

General

Brand	Atari
Model	800
Category	Desktop
Language	English