YMF754 Datasheet, PDF (30/60 Pages) YAMAHA CORPORATION – DS-1E

YMF754
60-61h: FM Synthesizer Base Address
Read / Write
Default: 0388h
Access Bus Width: 8, 16, 32-bit
b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
FM Synthesizer Base Address
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b[15:2] ........FM Synthesizer Base Address
This register sets the base address of the FM synthesizer. If b5:I/O bit of 40h register is set to “1”, b[9:2]
bits are decoded by ignoring b[15:10] bits.
62-63h: Sound Blaster Base Address
Read / Write
Default: 0220h
Access Bus Width: 8, 16, 32-bit
b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
Sound Blaster Base Address
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b[15:4] ........Sound Blaster Base Address
This register sets the base address of the Sound Blaster. If b5:I/O bit of 40h register is set to “1”, b[9:4]
bits are decoded by ignoring b[15:10] bits.
64-65h: MPU401 Base Address
Read / Write
Default: 0330h
Access Bus Width: 8, 16, 32-bit
b15 b14 B13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
MPU401 Base Address
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b[15:1] ........MPU401 Base Address
This register sets the base address of the MPU401. If b5:I/O bit of 40h register is set to “1”, b[9:1] bits are
decoded by ignoring b[15:10] bits.
66-67h: Joystick Base Address
Read / Write
Default: 0201h
Access Bus Width: 8, 16, 32-bit
b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
Joystick Base Address
b[15:0] ........Joystick Base Address
This register sets the base address of the Joystick. If b5:I/O bit of 40h register is set to “1”, b[9:0] bits are
decoded by ignoring b[15:10] bits.
June 28, 1999
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