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i.
~5;.:?';!'
()
Pro
t::
E~ ~.) 5 0
l'
i' " \
0
d u 1 e
NHSYNC
NINT
NI<EYACT
NI<EYDISP
NKEYBTAT
NI...RCX
Nt1UX
NNMI
NPFAIL
NPRINTER
NI~AS
NRESETA
NRESETB
NSELDC
NBYB9TAT
DeDi
(JeRi
PINT
PULLUP
RD
RECII~C
RESET
R ("
,;)
91)
horizontal synchronization
key active (depressed) on keyboard
select (clock) keyboard/display latch
enable keystatus port
line-~
l'ate-~
clock
opcode fetch Machine cycle
select (cLock) ModeM/display latch
clock RAM output latch
non-Maskahle interrupt (video)
power fail signal frOM power supply
printer select signal
row address strobe for dynaMic RAMs
power-on reset, driver A
power-on reset, drivel" B
datacoMM port select
systeM status port select
optional control driver 1, datacoMM
optiorhll control
r'ece:iv(~r
i.,
datacoMM
printer
i~terrupt
status
COMMon pullup resistor
receive data, datacoMM
line buffer recirculate enable
printer reset Signal
request to send, datacoMM
send data, datacoMM
i.
:3(~;!'
0 -9108'7/26
Rev
JAN···· 04····82
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