Input/Output Port Assignments - ADC SUPER SIX S-100 Technical Manual

3.1
SECTION III
IN PUT/OUTPUT PORTS
INPUT/OUTPUT PORT ASSIGNMENTS
Input/Output port assignments are shown in Table 3-1:
ADDRESS
FUNCTION
00
Read/Write
SIO channel A Data port
01 Read/Write
SIO channel A status/control port
02
Read/Write SIO channe 1 B Data port
03 Read/Write
SIO channel B status/control port
04
Read/Write PIO chan.nel A Data port
05
Write PIO channel B Data port
06
Read/Write PIO channel A control port
07
Write PIO channel B control port
08
Read/Write eTC channel 0 control port
09
Read/Write
eTC channel 1 control port
OA
Read/Write eTC channel 2 control port
OB
Read/Write
eTC channel 3 control port
oe
Read/Write FDC command/status port
OD Read/Write
FDC Track register
OE
Read/Write FDC sector register
OF Read/Write
FDe data port
10 Read/Write
DM A control port
II Read/Write
Same as port 10
12
Read/Write
Same as port 10
13 Read/Write
Same as port 10
14 .Read/Write
FDe synchronization/Drive/Density
15
Write S-IOO bus extended address A 16-A23
15 Read
On-board Baud Rate jumpers
16 Write
On-board memory control port 110
17
Write On-board memory control port III
18 Write
Set Baud Rate
19
Write
Same as port 18
lA Write Same as port 18
IB
Write
Same as port 18
Table 3-1. I/O Port Assignments for the SUPER SIX Board
Note: All Address in table 3-1 are listed in Hex.
The unused input/output ports are internally
decoded and should not be used by external S-100
I/O boards.
The individual ports are described in detail in the following subsection.
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