1/0 Port Map Of System; 1/0 Port Map Summary - Tandy 1000 SL Technical Reference Manual

1/0 P o r t
Map of S y s t e m
1/0 P o r t Map
B l o c k
0000-001F
0020-003F
0040-00 5F
0060-007F
0 080-0 0 9F
0 O C O
-
0 ODF
0100-01FF
0200-020F
0 2 10-0 2 F7
02F8-02FF
0 300-0 31F
0320-032F
0330-036F
0 370-0 3 7 7
0378-037F
0 38 0-0 3 CF
0 3DO-0 3DF
0 3EO-0 3EF
0 3FO-0 3F7
0 3F8-0 3FF
0 4 0
O-FFE7
FFE8-FFEF
o
OAO-
o
OBF
o
OEO-OOFF
Summary
Usage
0000-001F
0020-0027
0040-0047
0060-006F
0080-009F
0 OAO
0 OCO- 0 0 C7
0 OEO-0 OFF
0200-0207
0 2F8
-
0
2 FF
0370-0377
0378-037F
03DO-03DF
03FO-03F7
03F8-0 3FF
F u n c t i o n
DMA F u n c t i o n
I n t e r r u p t C o n t r o l l e r
T i
mer
PIO F u n c t i o n
DMA P a g e R e g i s t e r
NMI- Mask R e g i s t e r
Sound G e n e r a t o r
Numerical
c o p r o c e s s o r
Re
served
J o y s t i c k I n t e r f a c e
R e s e r v e d
Serial
P o r t S e c o n d a r y (COM2)
R e s e r v e d
Hard D i s k C o n t r o l l e r ( o p t i o n a l )
R e s
e r
v e d
F l o p p y D i s k C o n t r o l l e r 2 ( o p t i o n a l )
P r i n
t e r
R e s e r v e d
system video
R e s e r v e d
F l o p p y D i s k C o n t r o l l e r 1
S e r i a l P o r t P r i m a r y (COM1)
N o t Us a b 1
e
S y s t e m Programming O p t i o n s
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