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YMF754-R 数据表(PDF) 30 Page - YAMAHA CORPORATION |
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YMF754-R 数据表(HTML) 30 Page - YAMAHA CORPORATION |
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30 / 60 page ![]() YMF754 June 28, 1999 -30- 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 - - 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 - - - - 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 - 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. |
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