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Yamaha OPL3-SA3 specifications YMF715E, Interrupt IRQ-Bstatus RO, DMA configuration R/W

Models: OPL3-SA3

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Interrupt (IRQ-B) status (RO):

Hardware Volume Interrupt Flag : If configured VEN=1(index 0Ah, D7 bit), the interrupt occurs when either /VOLUP or /VOLDW is low level or when both are low level to request mute. The interrupt will be posted in the IRQ-B channel, if IRQ-B MV=1 (index 17h, D5 bit).

Note that when the muting is in effect, the subsequent mute requests which does not change any register contents will generate interrrupts. The ignored UP/DOWN requests (UP requests with 0dB Volume attn., DOWN requests with -30dB) will not generate interrupts.

This bit is cleared upon host's reading the Master Volume Lch register at index 07h.

Internal FM-synthesizer Timer Flag : Note that this flag will become undefined for the configurations (SEL=3,4,7) using external synthesizer (i.e. OPL4-ML/ML2).

MPU401 Interrupt Flag

Sound Blaster compatible Playback Interrupt Flag Timer Flag of CODEC

Recording Flag of CODEC

Playback Flag of CODEC

YMF715E

Interrupt (IRQ-B) status (RO):

Index	D7	D6	D5	D4	D3	D2	D1	D0


05h	-	MV	OPL3	MPU	SB	TI	CI	PI

This register is the status register that indicates which is the interrupt source of IRQB. When an interrupt occurs, the corresponding bit becomes “1” and its flag (except MV bit) is cleared when the interrupt routine is completed. This register is not cleared by writing to this register.

MV...

OPL3...

MPU...

SB...

TI...

CI...

PI...

DMA configuration (R/W):

Index	D7	D6		D5	D4	D3	D2		D1	D0


			DMA-B					DMA-A
	-	SB		WSS-R	WSS-P	-	SB		WSS-R	WSS-P

There are three devices (WSS-P (Windows Sound System CODEC playback), WSS-R (Windows Sound System CODEC recording) , SB(Sound Blaster compatible playback)) that may use a DMA channel. However 2 DMA channels (DMAA and DMAB) are available at maximum, this register specifies which device is routed to the physical DMA channels. And the device written to ”1” is assigned to the corresponding DMA channel. default : 61h

DMA-A: WSS-P

DMA-B: WSS-R + SB

Notice)

Do not assign a device to both DMA-A and DMA-B.

May 21, 1997

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Yamaha OPL3-SA3 specifications YMF715E, Interrupt IRQ-Bstatus RO, DMA configuration R/W

Contents

OPL3-SA3 FEATURESOUTLINE YMF715E100 pin SQFP Top View PIN CONFIGURATION YMF715E-SYMF715E YMF715E PIN DESCRIPTIONISA bus interface 36 pins Analog Input & Output 24 pinsYMF715E Multi-purposepins : 13 pinsOthers 27 pins Total 100 pinsYMF715E BLOCK DIAGRAMYMF715E FUNCTION OVERVIEW 1.Multi-purposepin1-1. Multi-purposefunction YMF715E 1-2.Pin descriptionMutil-purposepins 16V8 1-3.System Block DiagramYMF715E-S OPL3-SA3OPL4-ML/ML2 YMF715EYMF715E-S OPL3-SA3OPL3-SA3 OPL4ML/ML2 LRO YMF715EML/ML2 LRO YMF715EOPL3-SA3 OPL4OPL4-ML/ML2 YMF715EYMF715E-S OPL3-SA3OPL4 YMF715EYMF715E-S OPL3-SA3YMF715E 2-1.PnP Auto-Configurationmode2. ISA Interface May 2-2.PnP ISA Configuration RegisterYMF715E Card Control RegistersLogical Device Number = 2 MODEM Optional YMF715ELogical Device Number = 0 SA3 Sound System Logical Device Number = 1 JoystickYMF715E 2-3.Recommended Resource Data1 LDN=0 SA3 Sound System YMF715E 2 LDN=1 Joystick3 LDN=2 MODEM YMF715E 2-4.Manual Configuration Mode4 LDN=3 CD-ROM 3. Download Resource data 5. Hardware Volume Control5-1.Hardware Volume up/down/mute Control 5-2.Hardware Volume InterruptFig.7-13D Enhanced Control Block Diagram Yamaha 3D Enhanced Controller6. DAC interface 7. 3D Enhanced ControlYMF715E 8. Power ManagementYMF715E 8-1.Partial Power Down Mode8-2.Power Save Mode YMF715E 8-4.Suspend/Resume ModeOPL3 Data Register Array 0 R/W YMF715EOPL3 Status Register RO OPL3 Data Register Array 1 R/W 9-1-2.Sound Blaster Pro compatibilityYMF715E May 9-1-2-1.DSP CommandYMF715E CMD Support FunctionMay YMF715E9-1-2-2.Sound Blaster Pro compatibility Mixer SB Mixer YMF715ESB Mixer WSS MixerWSS Status Register RO 9-1-3.WSS compatible 16-bitCODECWSS Configuration Register RO YMF715EWSS CODEC Indirect Registers R/W YMF715EYMF715E 9-1-4.MPU4019-1-5. OPL3-SA3control register Power Management R/WSystem control R/W YMF715EInterrupt IRQ-Astatus RO Interrupt Channel configuration R/WYMF715E Interrupt IRQ-Bstatus RO DMA configuration R/WYMF715E YMF715E Master Volume Lch R/WMaster Volume Rch R/W MIC Volume R/WWSS Interrupt Scan out/in R/W YMF715EMiscellaneous WSS DMA Base counter R/WSBPDA YMF715Ei Scan Out YMF715EYMF715E Digital Block Partial Power Down R/WAnalog Block Partial Power Down R/W 3D Enhanced controlTREBLE R/W YMF715E3D Enhanced controlWIDE R/W 3D Enhanced controlBASS R/WMulti-purposeSelect Pin Status RO 9-2.Joystick9-3.MODEM YMF715EYMF715E 9-4. CD-ROMRecommended Operating Conditions Electrical CharacteristicsDC Characteristics 1DVDD = 5.0±0.25V Absolute Maximum RatingsYMF715E DC Characteristics 2DVDD = 3.3±0.30VSerial Audio Zoomed Video Interface Input Fig.9 AC CharacteristicsYMF715E YMF715E YMF715E I/O Write CycleI/O Read Cycle YMF715E 8bit Mono & ADPCM DMA Write CycleDRQ3,1,0 DACK3,1,0 Fig.3 8bit Mono & ADPCM DMA Read CycleYMF715E 8bit Stereo or 16bit Mono DMA CycleIOW,/IOR Fig.5 16bit Stereo DMA CycleFig.8 Serial Audio Interface Fig.7 Reset Pulse WidthRESET SYNCS or CDCS1,0 or MCSYMF715E Analog CharacteristicsAnalog Input Characteristics Analog Output CharacteristicsYMF715E External DimensionsYMF715E YAMAHA CORPORATIONIMPORTANT NOTICE AGENCY