Diamond Systems JUPITER-MM-SIO Benutzerhandbuch - Seite 9

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4. SERIAL PORT CONFIGURATION

Please refer to the drawing of Jupiter-MM-SIO on page 4 for locations of the configuration items mentioned here.

Port and Interrupt Register Address Selection

Each peripheral board in the computer system must have a unique I/O address or block of addresses. The
Jupiter-MM-SIO actually uses five I/O address blocks: one for each of the four serial ports and one for the
interrupt status register. Each port's address block consists of 8 consecutive addresses, while the interrupt status
register occupies a single address.
The I/O addresses are set with jumper block J9, located at the right edge of the board. Eight different I/O address
combinations are selectable. The address shown below for each port is the base address of that port, i.e. the
lowest address of the port's I/O address block.
J9: Serial Port Address Selection
A
B
In
In
Out
In
In
Out
Out
Out
In
In
Out
In
In
Out
Out
Out

Serial Protocol Selection

Different protocol configurations are possible for each serial port. Protocol selection is made by installing jumpers
in the positions indicated below in the configuration headers J7 or J8, depending on the port.
J7:
J8:
Protocol
RS-232
RS-422
RS-485
Copyright 2001 Diamond Systems Corp.
C
Port 1
Port 2
In
3F8
2F8
In
3E8
2E8
In
380
388
In
240
248
Out
100
108
Out
120
128
Out
140
148
Out
160
168
Port 1 protocol configuration
Port 2 protocol configuration
1
2
Out
In
Int
Out
In
Out
Interrupt
Status
220
220
224
224
240
244
248
24C
3
4
Out
Out
Int
Out
Out
In
Jupiter-MM-SIO User Manual V1.3
5
6
In
Out
Out
Out
Out
In
p. 9