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: 52/53页
文件大小: 455K
代理商: YMF715E-S
YMF715E
May 21, 1998
-8-
1-3. System Block Diagram
(1) SEL=1 (Sound Card and Combo Card Add-in)
1. External PAL(16V8 etc.)
(i) connect the signal AEN* generated by decoding SA15-12 and AEN to the AEN of OPL3-
SA3.
(ii) generate the /G(enable) signal for Data Bus Buffer (LS245) by decoding the /CDCS1-0 and
SA2-0.
(iii) generate the /RESET signal from RESETDRV.
MODEM I/F
SD15-8
/ENH
SA2-0
SA15-12
/RESET
AEN
245
IDE
CD-ROM
I/F
16V
8
RESETDRV
245
YMF715E-S
(OPL3-SA3)
EEPROM
YAC516
OPL4-ML/ML2
/ENL
CD
IR
Q
AE
N
*
/CD
C
S
1
/CD
C
S
0
/IOW,/IOR
RESET
AUX2L
AUX2R
XI
RXD
BCO
CLKO
DO2
LRO
RESET
/IOW,/IOR
A11-0
SA11-0
D7-0
SD7-0
MP
8
AE
N
MP
7
MP
6
MP0
MP1
/MCS
MIRQ
MP
3
MP
2
TX
D
MP
9
MP
5
TX
D
CL
K
O
MP
4
ROMDO
ROMDI
ROMCS
ROMCL
K
}
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