参数资料
型号: YMF715E-S
元件分类: 消费家电
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP100
封装: SQFP-100
文件页数: 50/53页
文件大小: 455K
代理商: YMF715E-S
YMF715E
May 21, 1998
-6-
FUNCTION OVERVIEW
1. Multi-purpose pin
1-1. Multi-purpose function
OPL3-SA3 can support the various functions listed below by programming SEL2-0 pins.
A. 16-bit address decode
B. EEPROM interface
C. Zoomed video port
D. CPU and DAC interface for OPL4-ML/ML2
E. MODEM interface
F. IDE CD-ROM interface
Following table shows what combinations of the above functions are available for each SEL2-0 pins.
SEL
16bit Dec.
EEPROM
ZV port
OPL4-ML/ML2
MODEM
CDROM
Remark
0
-
Test mode
1
O (*1)
O
-
O (*2)
O
O (*1)
S/C,C/C(add-in)
2
O
-
O (*3)
O
-
S/C (add-in)
3
O (*4)
O
-
O
-
S/C (add-in)
4
O (*4)
-
O
-
Note PC
5
O
-
O
O (*3)
O
-
Note PC
6
-
reserved
7
O
-
O
-
M/B, Note PC
Where,
S/C : Sound Card
C/C : Combo Card (Sound and Modem)
M/B : Desktop Mother Board
SEL=0
SEL=1
SEL=2
SEL=3
SEL=4
SEL=5
SEL=6
SEL=7
SEL0 pin
0
101
010
1
SEL1 pin
0
011
001
1
SEL2 pin
0
000
111
1
Notice
*1 : External PAL is needed.
*2 : External wavetable synthesizer (ex.OPL4-ML/ML2) is mixed as analog signal using external
DAC.
*3 : Clock module (ex.MK1420) is used to generate the clock for OPL4-ML/ML2 and it will be
mixed analog signal by having an additional DAC.
*4 : External TTLs (ex.LS138) is needed.
See section 1-2 and 1-3 for implementation detail.
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