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1~3;:!';:!O
Pr'oc:t:~~:)~~or
Module'
BEL DC
SHIEL.D
SMEM 0 -·SMEMS
Tr..O···TA1S
TBUBAK
TDO·-TD'7
TNBUSAI<
TNM'~E(~
1
Nr~
1)
TNI~FBH
rNWI~
TR
UL.INE
LH ... T IME
VBl..ANI(
VSYNC
datacoMM chip select
signal ground,
datacoM~
shield (earth) ground, datacoMM
ROMO-ROMS chip enable
address bits
0-15
bus acknowledge, ZaOA tristate
buffered data bus
active low bus acknowledge
zaOA
MeMory request
MeMory or
1/0
read select
dynaMic RAM refresh active
MeMory or
lID
write select
terMinal ready, datacoMM
select underline attribute
active on scan line
13,
indicates scan
line for underline or cursor display
vertical blank signal
vertical synchronization signal
1:3220-9108'7/27
Rev
JAN-()4-82
character code address to character ROM
lallA
data
blJ~~
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