Yamaha OPL3-SA3 specifications WSS compatible 16-bitCODEC, YMF715E, WSS Configuration Register RO

YMF715E

9-1-3. WSS compatible 16-bit CODEC

The followings are the I/Os for Window Sound System compatibility.
	WSS base			(R)	WSS Configuration Register port
	WSS base + 3h			(R)	WSS Status Register port
	WSS base + 4h			(R/W)	WSS CODEC Index address port
	WSS base + 5h			(R/W)	WSS CODEC Index data port
	WSS base + 6h			(R/W)	WSS CODEC Status port
	WSS base + 7h			(R/W)	WSS CODEC PIO Data port
WSS Configuration Register (RO):
	port		D7	D6	D5	D4	D3	D2	D1	D0
	+0h		“0”	“0”		IRQ			DMA
	This register is used to indicate what resources is assigned and it is read only register.
		IRQ:
			“0”:	No interrupt channel is available
			“1”:	IRQ7 is available
			“2”:	IRQ9 is available
			“3”:	IRQ10 is available
			“4”:	IRQ11 is available
			“5”-”7”:	reserved.
		DMA:
			“0”:	No DMA channel is available
			“1”:	DMA0
			“2”:	DMA1
			“3”:	DMA3
			“4”-“7”:	reserved

Notice)

In the case that CODEC is in Dual DMA mode, only playback DMA channels are valid and recording DMA channels are ignored.

WSS Status Register (RO):

port	D7	D6	D5	D4	D3		D2	D1	D0
+03h	SBHC	“0”				“04h”

WSS CODEC Direct Registers (R/W):

port	D7	D6	D5	D4	D3		D2	D1	D0
+4h	INIT	MCE	TRD			Index Address
+5h				Index Data
+6h	CU/L	CL/R	CRDY	SER	PU/L		P/R	PRDY	INT
+7h				PIO Data

May 21, 1997

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