Yamaha YMF724F F1h Scan In/ Out Data, F8h Interrupt Flag Register, B70 ..........SCAN Data

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YMF724F

F1h: Scan In/ Out Data

Read / Write

Default: 00h

b7

b6

b5

b4

b3

b2

b1

b0

SCAN DATA

b[7:0] ..........SCAN DATA

This is the data port for reading and writing the internal state.

F8h: Interrupt Flag Register

Read Only

Default: 00h

b7	b6	b5	b4	b3	b2	b1	b0

-	-	-	-	-	-	-	SBI

b0................SBI: SB Interrupt Flag

This bit indicates that the SB DSP occurs the interrupt. This bit is read only. Thus, read the SB DSP read port to clearing the interrupt and this bit. Then, the value of the read port is invalid.

September 21, 1998

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Contents Features OverviewLogos GM system levelSensaura PIN Configuration YMF724F-VPIN Description PCI Bus Interface 53-pinYMF730AC-2 Interface 6-pin YMF727AC3F2 Interface 9-pin Spdif Interface 1-pinLegacy Device Interface 16-pin Power Supply 39-pin Miscellaneous 15-pinBlock Diagram OPL3System Diagram DOS VMPCI Bus Command Function OverviewPCI Configuration Register 04 05h Command 00 01h Vendor ID02 03h Device ID 06 07h Status 08h Revision ID 09h Programming Interface0Ah Sub-class Code 0Bh Base Class Code0Dh Latency Timer 0Eh Header Type10 13h PCI Audio Memory Base Address 2C-2Dh Subsystem Vendor ID 2E-2Fh Subsystem ID34h Capability Register Pointer 3Ch Interrupt Line 3Dh Interrupt Pin3Eh Minimum Grant 3Fh Maximum Latency40 41h Legacy Audio Control B76 ..........SDMA Sound Blaster DMA-8 Channel Select B108 ........SBIRQ Sound Blaster IRQ Channel SelectB1311 ......MPUIRQ MPU401 IRQ Channel Select 42 43h Extended Legacy Audio Control B1211 ......SMOD SB DMA mode B15..............IMOD Legacy IRQ mode44-45h Subsystem Vendor ID Write Register B1413 ......SBVER SB Version Select4A-4Bh DS-1 Power Control Register 46-47h Subsystem ID Write Register48-49h DS-1 Control Register DPLL1 Disable PLL1 Clock Oscillation PSL0 Power Save Legacy Audio BlockPSL1 Power Save Legacy Audio Block PSN Power Save PCI Audio blockB12..............PR4 AC-2 Power down Control B13..............PR5 AC-2 Power down ControlB1514 ......AC-2 Power down Control 6 4C-4Dh D-DMA Slave Configuration 50h Capability ID52-53h Power Management Capabilities 51h Next Item Pointer54-55h Power Management Control / Status 58-59h Acpi ModeB10 ..........PS Power State B0................ACPI Acpi Mode SelectISA Compatible Device OPL3PCI OPL3 Block OPL3 Status Register ROOPL3 Data Register Array 0 R/W OPL3 Data Register Array 1 R/WSound Blaster Pro Block CMD Sound Blaster Pro Mixer SB Mixer AC-2 B0................SBPDR Sound Blaster Power Down Request SE Scan EnableSM Scan Mode Sbpda Sound Blaster Power Down AcknowledgementF1h Scan In/ Out Data F8h Interrupt Flag RegisterB70 ..........SCAN Data B0................SBI SB Interrupt FlagMPU401 JoystickDMA Emulation Protocol PC/PCIDMA Interrupt Routing Digital Audio InterfaceSerialized IRQ Hardware Volume Control Electrical Characteristics Absolute Maximum RatingsDC Characteristics Reset Master ClockPCI Interface Point to Point Input Hold Time for PciclkAC-2 / AC3F2 Master Clock AC-linkAC3F2 Interface Input Hold Time for AbclkAC3F2 Control Interface timing External Dimensions OFFYamaha Corporation