DECISION COMPUTER INTERNATIONAL CO., LTD.
PCCOM ISA 2 PORT RS422/RS485
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Card Type |
Digital I/O Card |
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I/O Options |
Serial ports (2) |
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Data Bus |
16-bit ISA |
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Card Size |
Half-length, full-height card |
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CONNECTIONS |
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Function |
Label |
Function |
Label |
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Serial port |
CN1 |
Serial port |
CN2 |
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USER CONFIGURABLE SETTINGS |
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Function |
Label |
Position |
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Enable serial port 1 |
JP1/H |
Open |
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Disable serial port 1 |
JP1/H |
Closed |
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Enable serial port 2 |
JP2/H |
Open |
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Disable serial port 2 |
JP2/H |
Closed |
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Normal Speed mode |
JP5 |
Pins 1 & 2 closed |
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High Speed mode |
JP5 |
Pins 2 & 3 closed |
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PORT 1 BASE I/O ADDRESS SELECTION |
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|
Setting |
JP1/A |
JP1/B |
JP1/C |
JP1/D |
JP1/E |
JP1/F |
JP1/G |
|
000h |
Closed |
Closed |
Closed |
Closed |
Closed |
Closed |
Closed |
|
008h |
Closed |
Closed |
Closed |
Closed |
Closed |
Closed |
Open |
|
010h |
Closed |
Closed |
Closed |
Closed |
Closed |
Open |
Closed |
|
300h |
Closed |
Closed |
Closed |
Closed |
Closed |
Closed |
Closed |
|
3E8h |
Open |
Open |
Open |
Open |
Open |
Closed |
Open |
|
3F0h |
Open |
Open |
Open |
Open |
Open |
Open |
Closed |
|
3F8h |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
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Note: The jumpers are a binary representation of the decimal memory addresses. JP1/A is the Most Significant Bit and switch JP1/G is the Least Significant Bit. The switches have the following decimal values: JP1/A=32768, JP1/B=16384, JP1/C=8192, JP1/D=4096, JP1/E=2048, JP1/F=1024, JP1/G=512. Open the pins and add the values of the jumper to obtain the correct memory address. (Open=1, Closed=0) |
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PORT 2 BASE I/O ADDRESS SELECTION |
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Setting |
JP2/A |
JP2/B |
JP2/C |
JP2/D |
JP2/E |
JP2/F |
JP2/G |
|
000h |
Closed |
Closed |
Closed |
Closed |
Closed |
Closed |
Closed |
|
008h |
Closed |
Closed |
Closed |
Closed |
Closed |
Closed |
Open |
|
010h |
Closed |
Closed |
Closed |
Closed |
Closed |
Open |
Closed |
|
300h |
Closed |
Closed |
Closed |
Closed |
Closed |
Closed |
Closed |
|
3E8h |
Open |
Open |
Open |
Open |
Open |
Closed |
Open |
|
3F0h |
Open |
Open |
Open |
Open |
Open |
Open |
Closed |
|
3F8h |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
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Note: The jumpers are a binary representation of the decimal memory addresses. JP2/A is the Most Significant Bit and switch JP2/G is the Least Significant Bit. The switches have the following decimal values: JP2/A=32768, JP2/B=16384, JP2/C=8192, JP2/D=4096, JP2/E=2048, JP2/F=1024, JP2/G=512. Open the pins and add the values of the jumper to obtain the correct memory address. (Open=1, Closed=0) |
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SERIAL PORT 1 INTERRUPT SELECTION |
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|
IRQ |
JP9 |
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IRQ2 |
Pins 1 & 2 closed |
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IRQ3 |
Pins 3 & 4 closed |
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IRQ4 |
Pins 5 & 6 closed |
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IRQ5 |
Pins 7 & 8 closed |
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IRQ7 |
Pins 9 & 10 closed |
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IRQ10 |
Pins 11 & 12 closed |
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IRQ11 |
Pins 13 & 14 closed |
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IRQ12 |
Pins 15 & 16 closed |
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IRQ14 |
Pins 17 & 18 closed |
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IRQ15 |
Pins 19 & 20 closed |
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SERIAL PORT 2 INTERRUPT SELECTION |
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|
IRQ |
JP10 |
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IRQ2 |
Pins 1 & 2 closed |
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IRQ3 |
Pins 3 & 4 closed |
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IRQ4 |
Pins 5 & 6 closed |
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IRQ5 |
Pins 7 & 8 closed |
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IRQ7 |
Pins 9 & 10 closed |
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IRQ10 |
Pins 11 & 12 closed |
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IRQ11 |
Pins 13 & 14 closed |
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IRQ12 |
Pins 15 & 16 closed |
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IRQ14 |
Pins 17 & 18 closed |
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IRQ15 |
Pins 19 & 20 closed |
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COMMON INTERRUPT SELECTION |
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|
IRQ |
JP6 |
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IRQ2 |
Pins 1 & 2 closed |
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IRQ3 |
Pins 3 & 4 closed |
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IRQ4 |
Pins 5 & 6 closed |
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IRQ5 |
Pins 7 & 8 closed |
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IRQ7 |
Pins 9 & 10 closed |
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IRQ10 |
Pins 11 & 12 closed |
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IRQ11 |
Pins 13 & 14 closed |
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IRQ12 |
Pins 15 & 16 closed |
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IRQ14 |
Pins 17 & 18 closed |
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IRQ15 |
Pins 19 & 20 closed |
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Note: Common IRQ should be set to match IRQ setting from both JP9 and JP10. |
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WAIT STATE SELECTION |
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Setting |
JP11 |
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0 |
Pins 1 & 2 closed |
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1 |
Pins 3 & 4 closed |
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2 |
Pins 5 & 6 closed |
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3 |
Pins 7 & 8 closed |
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4 |
Pins 9 & 10 closed |
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PORT 1 DRIVER MODE SELECTION |
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|
Setting |
JP3 |
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Driver always enabled |
Pins 1 & 2 closed |
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Driver enabled on RTS |
Pins 3 & 4 closed |
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Driver enabled by bit 0 of control register |
Pins 5 & 6 closed |
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PORT 2 DRIVER MODE SELECTION |
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|
Setting |
JP7 |
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Driver always enabled |
Pins 1 & 2 closed |
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Driver enabled on RTS |
Pins 3 & 4 closed |
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Driver enabled by bit 0 of control register |
Pins 5 & 6 closed |
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PORT 1 RECEIVER MODE SELECTION |
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|
Setting |
JP4 |
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Receiver mode always enabled |
Pins 1 & 2 closed |
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Receiver mode enabled by bit 0 of control register |
Pins 3 & 4 closed |
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Note: Using RS422 applications require that receiver mode be always enabled. |
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PORT 2 RECEIVER MODE SELECTION |
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Setting |
JP8 |
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Receiver mode always enabled |
Pins 1 & 2 closed |
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Receiver mode enabled by bit 0 of control register |
Pins 3 & 4 closed |
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Note: Using RS422 applications require that receiver mode be always enabled. |
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