I N P U T S; Strobe; Sint - Tandy 1000 SL Technical Reference Manual

PIN
NAME
SINT
PIN NO.
1 3
DRIVE
2
mA
TS
DESCRIPTION
S e r i a l I n t e r r u p t ,
t r i s t a t e .
TTL i n Low f r e q u e n c y s o u n d
i n p u t .
PPITIM
AU D I 0-1 N
SND-OUT
G A I
N-OUT
DRQ
TC
D A C K l
WAIT-
J P O S l
-
JPOS4
JSWl
-
JSW4
DAC-OUT
6 8
55
An i n . A n a l o g a u d i o i n p u t , 1
V
P-P
5 7
An o u t A n a l o g a u d i o o u t p u t , 2
V
P-P
56 A n a l o g a u d i o o u t p u t , 2
V
P-P
Data r e q u e s t f o r
DMA
o p e r a t i o n s ,
t r i s t a t e .
An o u t
2 3
2
mA
TS
27
26
TTL i n
TTL i n
T e r m i n a l C o u n t i n p u t .
Data a c k n o w l e d g e f o r
DMA
ops.
Sound c h i p w a i t o u t p u t ,
o p e n d r a i n .
24 2
mA OD
6 0
,
6 1 , 6 2 , 6 3
DS1218
DS1218
D i g i t a l j o y s t i c k p o s i t i o n
i n p u t .
6 4 , 6 5 , 6 6 , 6 7
D i g i t a l j o y s t i c k s w i t c h
i n p u t s .
A n a l o g
DAC
o u t p u t f o r
e x t e r n a l i n t e g r a t i o n ,
c o m p a r i s o n w i t h j o y s t i c k
vo
1
t a g e s .
5 8
An o u t
PDO
-
PD7 5 1 , 5 0 , 4 9 , 4 8
4 7 , 4 6 , 4 5 , 4 4
DS1218
4
mA
TS
P r i n t e r d a t a
i n p u t s / o u t p u t s .
P r i n t e r i n i t i a l i z a t i o n
o u t p u t .
40 I N I T 4
mA OD
AFXT-
STROBE
-
ACK-
39
38
4 1
4
mA OD
4
mA OD
TTL i n
P r i n t e r a u t o f e e d o u t p u t .
P r i n t e r s t r o b e o u t p u t .
P r i n t e r a c k n o w l e d g e
i n p u t .
2