Specifications

Multi Slave Product Reference Manual
Section 2
SLAVE
STATUS PORT (read by Master Processor
.--.--.--+--.--+--.--.--+
1071061051041031021011001
.--+--+--+--+--+--+--+--+
1 = MASTER MESSAGE set
1 = SLAVE MESSAGE set
o = ALIVEw bit set
o Slave is in HOLD.
o = Slave is WRITING 5-100 data
1 = Slave 1s REAOING S-100 data
o = Slave RESETw active
STATUS PORT (written by Haster Processor)
+--+--+--+--+--+--+--+--+
1071061D5104J03102101JOOJ
+--+--+--+--+--+--+--+--.
1 = set MASTER MESSAGE bit
1 = reset slave processor
Figure 2-4 Haater Statu. Port Bit Oa£intiona
Note that bits 06 and D7 of the STATUS PORT are not used, and are
on (1) when the port is read by the Master Processor. Note also
that there are four low active terms; ALIVE., HOLD~, WRITE*, and
RESET-.
SLAVE STATUS PORT BIT DEFINIT10NS
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