IBM Series 1 User Manual page 39

tv
t
tv
.c::
(j)
~
w
+:
I
o
o
w
w
'~
Address bus bit 1
(i
Address bus bit 00-15
Data bus (write)
Address gate
Condition code in bus
(I/O instruction CC)
Data bus (read)
Address gate return
Data strobe
I ..
Channel time-out ..
I
I
LVS
CT4
..
~
CT2 I CT3
___________________ ~~--~·I ~
~----------------------
Timings:
o
~
T1
~
T2 :::; 3
IlS
o
~
T4 :::; T5 :::; 3
IlS
200 ns
<
CT1
100 ns
<
CT2
200 ns
<
CT3
100 ns
<
CT4
<
CT3 + 100 ns
"",.,
...
' "
Legend:
CT
=
channel times
T
=
attachment controlled times
L VS
=
last valid signal, occurring in time, of a group of
signals being activated' on the channel. The group
is linked by short dotted lines on the timing diagram.
LIS
=
last invalid signal, occurring in time, of a group of
signals being deactivated on the channel. The group
is linked by short dotted lines on the timing diagram.
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