AMPRO COMPUTERS, INC.
EMBEDDED SOUND MODULE
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Card Type |
Sound card |
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Chip Set |
ESS Technology, Inc. |
|
I/O Options |
CD audio in, stereo line in/out, microphone in, PC speaker in/out |
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Card Size |
Half-length, full-height card |
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CONNECTIONS |
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Function |
Label |
Function |
Label |
|
Speaker connector |
J3 |
CD audio input connector |
J7 |
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Common I/O connector |
J4 |
PC speaker connector |
J8 |
|
Stereo output jack |
J5 |
Header connection to expansion board |
P1 |
|
Stereo input jack |
J6 |
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PC SPEAKER CONTROL |
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|
Setting |
J10 |
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PC speaker output is analog version of speaker input |
Pins 1 & 2 closed |
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PC speaker output is tied to left speaker amplifier output |
Pins 1 & 7 closed |
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Speaker volume controlled by software and external potentiameter |
Pins 3 & 4, 8 & 9 closed |
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Speaker volume controlled only by software |
Pins 4 & 5, 9 & 10 closed |
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STEREO OUTPUT CONTROL |
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Setting |
J11 |
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Stereo output jack J5 set to amplified left/right |
Pins 1 & 3, 2 & 4 closed |
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Stereo output jack J5 set to line out |
Pins 3 & 5, 4 & 6 closed |
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Stereo input jack J6 set to line in |
Pins 7 & 9, 8 & 10 closed |
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Stereo input jack J6 set to mic in on left channel; right channel unused |
Pins 10 & 12 closed |
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Stereo input jack J6 set to mic in on right channel; left channel unused |
Pins 11 & 12 closed |
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DMA CHANNEL/INTERRUPT SELECTION |
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DMA Channel |
IRQ Setting |
J9 |
|
Disable |
2/9 |
Pins 6 & 7, 14 & 15 closed |
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0/Disable |
7 |
Pins 7 & 8, 14 & 15 closed |
|
1 |
5 |
Pins 6 & 7, 15 & 16 closed |
|
3 |
3/10 |
Pins 7 & 8, 15 & 16 closed |
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Note: Setting for DMA 0 is for 16-bit version of this board. Setting for DMA 0 on an 8-bit board diables the DMA. IRQ9 and IRQ10 are available only on 16-bit boards. IRQ2 and IRQ3 are selected on 8-bit boards. |
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BASE I/O ADDRESS SELECTION |
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Setting |
J9/1 & 2 |
J9/9 & 10 |
|
220h |
Open |
Closed |
|
240h |
Closed |
Open |