Xerox Alto I User Manual

16
,
16
,
Input Shifter
Clock
Phase
Decoder
Read data
.
Microcode Status
I I
I
0: Normal input completion
1: Normal output completion
2: Input buffer overrun
3: Load overflow
4: Zero
,length buffer
5: Reset by software
I
6: Impossible microcode condition
7
·377b: Reserved
Alto Processor Bus
1\
~
Interface Buffer
...
16
(16 words)
16
II
.....
Output Shifter
Write
register
II
Phase
Encoder
Transceiver
Write
data
1
1
I
Ethernet
Figure
9-- Ethernet Control
IDL Coli CRC ICmd
OCmd
IT
I
. .
Hardware Status

Xerox Alto I Specifications

General

Brand	Xerox
Model	Alto I
Category	Desktop
Language	English