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: 37/53页
文件大小: 455K
代理商: YMF715E-S
YMF715E
May 21, 1998
-42-
Multi-purpose Select Pin Status (RO):
Index
D7
D6
D5
D4
D3
D2
D1
D0
18h
”1”
SEL2
SEL1
SEL0
-
“0”
This is a status register that indicates the state of multi-purpose pin.
SEL2-0...
The state of SEL2-0 pins is reflected to these bits. The multi-purpose
function of YMF715E (OPL3-SA3) can be confirmed by reading the bits.
These bits are read only.
default : (1xxx0000)b
9-2. Joystick
Port
D7
D6
D5
D4
D3
D2
D1
D0
Xxh
JBB2
JBB1
JAB2
JAB1
JBCY
JBCX
JACY
JACX
JACX... Joystick A, Coordinate X
JACY... Joystick A, Coordinate Y
JBCX... Joystick B, Coordinate X
JBCY... Joystick B, Coordinate Y
JAB1... Joystick A, Button 1
JAB2... Joystick A, Button 2
JBB1... Joystick B, Button 1
JBB2... Joystick B, Button 2
9-3. MODEM
The following pins are for MODEM interface with PnP supported.
/MCS...
chip select (eight consecutive byte I/O)
MIRQ...
interrupt signal
And MIN is the analog input to mix the telephone line.
MIN...
analog input
9-4. CD-ROM
The following pins are for IDE CD-ROM interface with PnP supported.
/CDCS0... chip select for CD-ROM
/CDCS1... chip select for CD-ROM
CDIRQ... interrupt signal
Other signals needed for CD-ROM must be generated by the external PALs, which is described in
section 1-3.
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