IBM CORPORATION
EASY OPTIONS PROFESSIONAL AUDIO CARD AC523, EASY OPTIONS SOUND CARD CD651
|
Card Type |
Sound card |
|
Chip Set |
Unidentified |
|
Maximum Onboard Memory |
N/A |
|
I/O Options |
Audio extension connector, CD-ROM audio, CD-ROM interface, game/MIDI port, line in, microphone in, MIDI extension connector, PC speaker, speaker out, volume |
|
Data Bus |
16-bit ISA |
|
Floppy drives supported |
N/A |
|
CONNECTIONS | |||
|
Function |
Label |
Function |
Label |
|
Game/MIDI port |
CN1 |
MIDI extension connector |
CN6 |
|
Audio extension connector |
CN2 |
Line in |
J1 |
|
CD-ROM interface |
CN3 |
Mic in |
J2 |
|
PC speaker |
CN4 |
Speaker out |
J3 |
|
CD - audio in |
CN5 |
Volume |
VR1 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Label |
Position | |
|
Game port enabled |
JYEN |
Closed | |
|
Game port disabled |
JYEN |
Open | |
|
MIDI base address is 330h |
MSEL |
Closed | |
|
MIDI base address is 300h |
MSEL |
Open | |
|
AUDIO BASE I/O ADDRESS SELECTION | |||
|
Address |
IOS0 |
IOS1 | |
|
220h |
Closed |
Closed | |
|
240h |
Open |
Closed | |
|
260h |
Closed |
Open | |
|
280h |
Open |
Open | |
|
INTERRUPT SELECTION | |||
|
IRQ |
IS0 |
IS1 | |
|
2/9 |
Closed |
Closed | |
|
5 |
Open |
Closed | |
|
7 |
Closed |
Open | |
|
10 |
Open |
Open | |
|
8-BIT DMA CHANNEL SELECTION | |||
|
Channel |
DAS0 |
DAS1 | |
|
0 |
Closed |
Closed | |
|
1 |
Open |
Closed | |
|
3 |
Closed |
Open | |
|
16-BIT DMA CHANNEL SELECTION | |||
|
Channel |
DBS0 |
DBS1 | |
|
5 |
Closed |
Closed | |
|
6 |
Open |
Closed | |
|
7 |
Closed |
Open | |
|
AUDIO INTERNAL AMPLIFIER CONFIGURATION | |||
|
Setting |
OPSL |
OPSR | |
|
Disabled |
Pins 1 & 2 closed |
Pins 1 & 2 closed | |
|
Enabled |
Pins 2 & 3 closed |
Pins 2 & 3 closed | |