YMF744B Datasheet, PDF (31/60 Pages) List of Unclassifed Manufacturers – DS-1S

YMF744B
64-65h: MPU401 Base Address
Read / Write
Default: 0000h
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: 0000h
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.
February 3, 1999
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