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YMF744B
64-65h: MPU401 Base Address
Read / Write
Default: 0000h
Access Bus Width: 8, 16, 32-bit
b15
b14
b13
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
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.
b12
b11
b10
b9
MPU401 Base Address
b12
b11
b10
b9
Joystick Base Address
b8
b7
b6
b5
b8
b7
b6
b5
-31-
b4
b3
b2
b1
b4
b3
b2
b1
February 3, 1999
b0
-
b0
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