参数资料
型号: YMF724F
厂商: Yamaha Corporation
英文描述: high performance audio controller for the PCI Bus
中文描述: 高性能音频控制器的PCI总线
文件页数: 11/50页
文件大小: 268K
代理商: YMF724F
YMF724F
January 14, 1999
-19-
42 - 43h: Extended Legacy Audio Control
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
IMOD
SBVER
SMOD
-
MAIM
JSIO
MPUIO
SBIO
FMIO
b[1:0] ..........FMIO: FM I/O Address allocation
These bits determine the base I/O address for the of the FM Synthesizer block (FMBase).
FM Synthesizer block uses 4 bytes in the I/O address space.
“0”:
388h
(default)
“1”:
398h
“2”:
3A0h
“3”:
3A8h
b[3:2] ..........SBIO: SB I/O Address allocation
These bits determine the base I/O address for the Sound Blaster Pro block (SBBase).
This block uses 16
bytes in the I/O address space.
“0”:
220h
(default)
“1”:
240h
“2”:
260h
“3”:
280h
b[5:4] ..........MPUIO: MPU I/O Address allocation
These bits determine the base I/O address for the MPU401 block (MPUBase).
This block uses 2 bytes
in the I/O address space.
“0”:
330h
(default)
“1”:
300h
“2”:
332h
“3”:
334h
b[7:6] ..........JSIO: Joystick I/O Address allocation
These bits determine the base I/O address for the Joystick block (JSBase).
This block uses 1 byte in the
I/O address space.
“0”:
201h
(default)
“1”:
202h
“2”:
204h
“3”:
205h
b8................MAIM: MPU401 Acknowledge Interrupt Mask
This bit determine whether interrupt is asserted when the acknowledge, which is occurred by changing
MPU401 mode form default to UART, is returned.
“0”: Interrupt is asserted when the acknowledge is returned.
(default)
“1”: Interrupt is masked when the acknowledge is returned.
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