Major Chips Description
2-83
2.6.3 Pin Descriptions
Table 2-11
YMF715 Descriptions
Pin name
Pins
I/O
Type
Size
Function
ISA bus interface: 36 pins
D7-0
8
I/O
TTL
24mA
Data Bus
Al 1-0
12
I
TTL
2mA
Address Bus
AEN
1
I
TTL
2mA
Address Bus Enable
/IOW
1
I
Schmitt
4mA
Write Enable
/IOR
1
I
Schmitt
4mA
Read Enable
RESET
1
I
Schmitt
4mA
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
2mA
DMA Acknowledge
Analog Input & Output : 24 sins
OUTL
1
O
-
-
Left mixed analog output
OUTR
1
O
-
-
Right mixed analog output
VREFI
1
I
-
-
Voltage reference input
VREFO
1
O
-
-
Voltage reference output
AUXIL
l
I
-
-
Left AUX1 input
AUX1R
l
I
-
-
Right AUX1 input
AIJX2L
l
I
-
-
Left AUX2 input
AUX2R
1
I
-
-
Right AUX2 input
LINEL
1
I
-
-
Left LINE input
LINER
1
I
-
-
Right LINE input
MIC
1
I
-
-
MIC input
MIN
1
I
-
-
Monaural input
TRECL
1
-
-
-
Left Treble capacitor
TRECR
1
-
-
-
Right Treble-capacitor
SBFLTL
1
-
-
-
Left SBDAC filter
SBFLTR
1
-
-
-
Right SBDAC filter
SYNSHL
1
-
-
-
Left SYNDAC sample / hold capacitor
SYNSHR
1
-
-
-
Right SYNDAC sample / hold capacitor
ADFLTL
1
-
-
-
Left input filter
ADFLTR
1
-
-
-
Right input filter
VOCOL
1
O
-
-
Left voice output
VOCOR
I
O
-
-
Right voice output
VOCIL
1
I
-
-
Left voice input
VOCIR
1
I
-
-
Right voice input
Multi-purpose Dins: 13 pins
SEL2-0
3
I+
CMOS
2mA
Refer to “Multi-purpose pins” section
Summary of Contents for 390 Series
Page 15: ...System Introduction 1 3 Figure 1 2 PCB No 96183 1A Mainboard Layout Bottom ...
Page 96: ...2 50 Service Guide 2 3 3 Pin Configuration Figure 2 4 FDC37C67 TQFP Pin Diagram ...
Page 97: ...Major Chips Description 2 51 Figure 2 5 FDC37C67 QFP Pin Diagram ...
Page 102: ...2 56 Service Guide 2 3 6 Block Diagram Figure 2 6 FDC37C67 Block Diagram ...
Page 126: ...2 80 Service Guide 2 5 4 1 Functional Block Diagram Figure 2 10 M38813 Block Diagram ...
Page 128: ...2 82 Service Guide 2 6 2 Pin Diagram Figure 2 11 YMF715 Block Diagram ...
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