YMF715E Datasheet, PDF (3/54 Pages) YAMAHA CORPORATION – OPL3 Single-chip Audio System 3

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˙ PIN DESCRIPTION
ISA bus interface: 36 pins
name
pins I/O type Size function
D7-0
8 I/O TTL 24mA Data Bus
A11-0
12 I TTL
- Address Bus
AEN
1
I TTL
- Address Bus Enable
/IOW
1
I Schmitt
-
Write Enable
/IOR
1
I Schmitt
-
Read Enable
RESET
1
I Schmitt
-
Reset
IRQ3,5,7,9,10,11
6 T TTL 12mA Interrupt request
DRQ0, 1, 3
3 T TTL 12mA DMA Request
/DACK0, 1, 3
3
I TTL
- DMA Acknowledge
Analog Input & Output : 24 pins
name
pins I/O type
OUTL
1O
-
OUTR
1O
-
VREFI
1
I
-
VREFO
1O
-
AUX1L
1
I
-
AUX1R
1
I
-
AUX2L
1
I
-
AUX2R
1
I
-
LINEL
1
I
-
LINER
1
I
-
MIC
1
I
-
MIN
1
I
-
TRECL
1
-
-
TRECR
1
-
-
SBFLTL
1
-
-
SBFLTR
1
-
-
SYNSHL
1
-
-
SYNSHR
1
-
-
ADFLTL
1
-
-
ADFLTR
1
-
-
VOCOL
1O
-
VOCOR
1O
-
VOCIL
1
I
-
VOCIR
1
I
-
size function
- Left mixed analog output
- Right mixed analog output
- Voltage reference input
- Voltage reference output
- Left AUX1 input
- Right AUX1 input
- Left AUX2 input
- Right AUX2 input
- Left LINE input
- Right LINE input
- MIC input
- Monaural input
- Left Treble capacitor
- Right Treble capacitor
- Left SBDAC filter
- Right SBDAC filter
- Left SYNDAC sample / hold capacitor
- Right SYNDAC sample / hold capacitor
- Left input filter
- Right input filter
- Left voice output
- Right voice output
- Left voice input
- Right voice input
May 21, 1997
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