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YMF724F Datasheet, PDF (22/50 Pages) YAMAHA CORPORATION – high performance audio controller for the PCI Bus | |||
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YMF724F
b2................DPLL1: Disable PLL1 Clock Oscillation
Setting this bit to â1â disables the oscillation of PLL for the PCI Audio function.
â0â: Normal
(default)
â1â: Disable
b3................PSL0: Power Save Legacy Audio Block 0
Setting this bit to â1â stops providing the clock with the Legacy Audio function block 0. This block
includes FM Synthesizer and SB Pro engines.
â0â: Normal
(default)
â1â: Power Save
b4................PSL1: Power Save Legacy Audio Block 1
Setting this bit to â1â stops providing the clock with the Legacy Audio function block 1. This block
includes MPU401 and Joystick.
â0â: Normal
(default)
â1â: Power Save
b5................PSN: Power Save PCI Audio block
Setting this bit to â1â stops providing the clock with the PCI Audio function block. This block includes
PCI Audio, SRC, AC3F2 I/F, ACâ97 I/F, H/W Vol. and SPDIF.
â0â: Normal
(default)
â1â: Power Save
b8................PR0: ACâ97 Power down Control 0
This bit controls the power state of the ADC and Input Mux in ACâ97.
â0â: Normal
(default)
â1â: Power down
b9................PR1: ACâ97 Power down Control 1
This bit controls the power state of the DAC in ACâ97.
â0â: Normal
(default)
â1â: Power down
b10..............PR2: ACâ97 Power down Control 2
This bit controls the power state of the Analog Mixer (Vref still on) in ACâ97. This power state retains
the Reference Voltage of ACâ97.
â0â: Normal
(default)
â1â: Power down
b11..............PR3: ACâ97 Power down Control 3
This bit controls the power state of the Analog Mixer (Vref off) in ACâ97. This power state removes
Reference Voltage of ACâ97.
â0â: Normal
(default)
â1â: Power down
January 14, 1999
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