Text preview for : BIGMAC_Pgmrs_Model_8-85.pdf part of apple BIGMAC Pgmrs Model 8-85 apple bigmac BIGMAC_Pgmrs_Model_8-85.pdf
Back to : BIGMAC_Pgmrs_Model_8-85.p | Home
Rich Page
8/14/85
APPLE CONFIDENTIAL
Programmers Model for the Big Mac
Introduction
This document describes the Big Mac hardware from the programmers
view of the machine which includes a description of the address space
maps and a description of each device.
The CPU clock is generated by the clock generator gate array which is
controlled by three signals CSELO, CSEL 1 and M70. These signals are
controlled by dip switches and described by the following table.
x"
\.~ ~ELQ ~EL1 MIQ ~FREQ