Yamaha YMF744B (DS-1S) specifications 58-59h Acpi Mode, 5A-5Bh DS-1S Secondary AC’97 Power Control

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YMF744B

58-59h: ACPI Mode

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

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

ACPI

b0................ACPI: ACPI Mode Select

This bit select either PCI Bus Power Management or ACPI Mode for power management of DS-1S.

“0”: PCI Bus Power Management is used. CAP bit (06-07h: Status Register) and Capabilities Pointer

(34h) are enabled.

(default)

“1”: ACPI Mode is used.

CAP bit and Capabilities Pointer are hardwired “0”, and disabled.

5A-5Bh: DS-1S Secondary AC’97 Power 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

-

-

-

-

-

-

-

-

SPR7

SPR6

SPR5

SPR4

SPR3

SPR2

SPR1

SPR0

b0................SPR0: Secondary AC’97 Power Down Control 0

This bit controls the power state of the ADC and Input Mux in the Secondary AC’97.

	“0”: Normal	(default)
	“1”: Power down
b1	................SPR1: Secondary AC’97 Power Down Control 1

This bit controls the power state of the DAC in the Secondary AC’97.

“0”: Normal(default)

“1”: Power down

b2................SPR2: Secondary AC’97 Power Down Control 2

This bit controls the power state of the Analog Mixer (Vref still on) in the Secondary AC’97. This power state retains the Reference Voltage of the AC’97.

“0”: Normal(default)

“1”: Power down

b3................SPR3: Secondary AC’97 Power Down Control 3

This bit controls the power state of the Analog Mixer (Vref off) in the Secondary AC’97. This power state removes Reference Voltage of the AC’97.

“0”:	Normal	(default)
“1”:	Power down

February 3, 1999

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Contents Overview FeaturesPreliminary GM system level LogosSensaura February 3YMF744B-V 0.5mm pin pitch PIN ConfigurationYMF744B-R 0.4mm pin pitch AC’97 Interface 8-pin PIN DescriptionPCI Bus Interface 54-pin Miscellaneous 11-pin External Audio Interface 5-pinLegacy Device Interface 15-pin Reserve Pin 13-pin Power Supply 22-pinPC/PCI IRQ Block DiagramTarget Device Mode PCI Bus CommandMaster Device Mode Function Overview5C-5Fh PCI Configuration Register02-03h Device ID 04-05h Command00-01h Vendor ID 06-07h Status 09h Programming Interface 08h Revision ID0Ah Sub-class Code 0Bh Base Class Code10-13h PCI Audio Memory Base Address 0Dh Latency Timer0Eh Header Type B0................IO Read Only 18-1Bh Legacy Audio I/O Base Address Dummy for Joystick2E-2Fh Subsystem ID 2C-2Dh Subsystem Vendor IDB150 ........Subsystem Vendor ID B150 ........Subsystem ID3Ch Interrupt Line 34h Capability Register Pointer3Dh Interrupt Pin 3Eh Minimum Grant40-41h Legacy Audio Control 3Fh Maximum LatencyB5................I/O I/O Address Aliasing Control B4................MIEN MPU401 IRQ EnableB76 ..........SDMA Sound Blaster DMA-8 Channel Select B108 ........SBIRQ Sound Blaster IRQ Channel SelectB1211 ......SMOD SB DMA mode B14..............SIEN Serialized IRQ enable42-43h Extended Legacy Audio Control B8................MAIM MPU401 Acknowledge Interrupt Mask46-47h Subsystem ID Write Register 44-45h Subsystem Vendor ID Write RegisterCrst AC’97 Software Reset Signal Control Read / Write Default 0001h Access Bus Width 8, 16, 32-bitWrst AC’97 Warm Reset 48-49h DS-1S Control4A-4Bh DS-1S Power Control 4C-4Dh D-DMA Slave Configuration 4E-4Fh DS-1S Power Control B12 Psacl Power Save AC-Link Psio Power Save I/O Pad B70 ..........Capability ID Capability Identifier 50h Capability ID51h Next Item Pointer 52-53h Power Management Capabilities54-55h Power Management Control / Status 5A-5Bh DS-1S Secondary AC’97 Power Control 58-59h Acpi Mode62-63h Sound Blaster Base Address 60-61h FM Synthesizer Base Address66-67h Joystick Base Address 64-65h MPU401 Base AddressB151 ........MPU401 Base Address B150 ........Joystick Base AddressISA Compatible Device DS-1S FM Synthesizer Status Register RO FM Synthesizer BlockStatus Register FM Synthesizer Data Register Array 1 R/W FM Synthesizer Data RegisterFM Synthesizer Data Register Array 0 R/W Sound Blaster Pro Block CMD DSP CommandSB Mixer DSP Sound Blaster Pro MixerSB Mixer AC’97 Volume for MidiSE Scan Enable B0................SBPDR Sound Blaster Power Down RequestSM Scan Mode Sbpda Sound Blaster Power Down AcknowledgementF2h Current FM Synthesizer Index F1h Scan In/ Out DataF3h Current FM Synthesizer Array F4h FM Synthesizer / MPU401 StatusFfemp FM Synthesizer Empty MPU401 F8h Interrupt Flag RegisterJoystick SB IRQ StatusPC/PCI DMA Emulation ProtocolDMA Serialized IRQ Interrupt RoutingHardware Volume Control Spdif Digital Audio InterfaceSclk Data Lrck Zoomed Video PortChannel Speaker System Multiple AC’97 & Multi-ChannelAC’97 Digital Docking Recommended Operating Conditions Electrical CharacteristicsAbsolute Maximum Ratings DC Characteristics Master Clock AC CharacteristicsReset PCI Clock timing PCI InterfaceMaster Clock timing for AC’97 AC’97 Master ClockAC-link timing AC-linkZoomed Video Port timing Zoomed Video PortUnit mm February 3 External DimensionsYMF744B-R Yamaha Corporation