DIGITAL COMMUNICATION ASSOCIATES, INC.
SYNCHRONOUS COMMUNICATIONS ADAPTER
|
Card Type |
Serial controller |
|
Chipset/Controller |
Zilog 8085 |
|
I/O Options |
Serial port |
|
Maximum DRAM |
N/A |
|
CONNECTIONS | |
|
Purpose |
Location |
|
Serial port |
CN1 |
|
I/O ADDRESS CONFIGURATION | |||||||
|
Address |
J2A |
J2B |
J2C |
J2D |
J2E |
J2F | |
|
380h |
Open |
Open |
Open |
Open |
Closed |
Open | |
|
300h |
Closed |
Open |
Open |
Open |
Open |
Open | |
|
308h |
Open |
Closed |
Open |
Open |
Open |
Open | |
|
340h |
Open |
Open |
Closed |
Open |
Open |
Open | |
|
348h |
Open |
Open |
Open |
Closed |
Open |
Open | |
|
388h |
Open |
Open |
Open |
Open |
Open |
Closed | |
|
SLOT NUMBER & PC/XT SETTINGS | ||
|
Setting |
J1 | |
|
Card in slot other than slot 8 on PC/XT |
Pins 2 & 3 closed | |
|
Card in slot 8 of PC/XT |
Pins 1 & 2 closed | |
|
INTERRUPT SELECT | |||||||
|
IRQ |
J5A |
J5B |
J5C |
J5D |
J5E |
J5F | |
|
IRQ3 |
Open |
Closed |
Open |
Open |
Open |
Open | |
|
IRQ2 |
Closed |
Open |
Open |
Open |
Open |
Open | |
|
IRQ4 |
Open |
Open |
Closed |
Open |
Open |
Open | |
|
IRQ5 |
Open |
Open |
Open |
Closed |
Open |
Open | |
|
IRQ6 |
Open |
Open |
Open |
Open |
Closed |
Open | |
|
IRQ7 |
Open |
Open |
Open |
Open |
Open |
Closed | |
|
FACTORY CONFIGURED SETTINGS | |
|
Jumper |
Setting |
|
J3 |
Pins 1 & 2 closed |
|
J4 |
Pins 1 & 2 closed |