YMF715E Просмотр технического описания (PDF) - Yamaha Corporation

Номер в каталоге

Компоненты Описание

производитель

YMF715E

5.0/3.3V; OPL3-SA3 OPL3 single-chip audio system 3

Yamaha Corporation 

YMF715E

(4) LDN=3:CD-ROM

I/O (/CDCS0): 16bit address decode

Index

Best

Acceptable1

I/O

Length

Alignment

1E8h

8

-

100-1F8h

8

8

I/O (/CDCS1): 16bit address decode

Index

Best

Acceptable1

I/O

Length

3EEh

1

306-3F6h

1

Alignment

-

8

IRQ: high-active, edge-sense

Index

Best

IRQ

11

Acceptable1

3,5,7,9,10,11

Acceptable2

<-

<-

<-

Acceptable2

<-

<-

<-

Acceptable2

<-

Acceptable3

<-

<-

<-

Acceptable3

<-

<-

<-

Acceptable3

<-

2-4. Manual Configuration Mode

When OPL3-SA3 is in the Wait for Key state, it can be changed to the Manual Configuration mode

by sending the following YAMAHA key to Address_Port. The Manual Configuration mode is used

for downloading the resource data to EEPROM and internal SRAM, setting up the OPL3-SA3

without PnP protocol.

YAMAHA Key:

B1h, D8h, 6Ch, 36h, 9Bh, 4Dh, A6h, D3h,

69h, B4h, 5Ah, ADh, D6h, EBh, 75h, BAh,

DDh, EEh, F7h, 7Bh, 3Dh, 9Eh, CFh, 67h,

33h, 19h, 8Ch, 46h, A3h, 51h, A8h, 54h

In the Manual Configuration mode, PnP registers can be accessed by the host without PnP protocol.

Right after OPL3-SA3 is switched to the Manual Configuration mode, set “81h” in CSN register

automatically to put OPL3-SA3 in ‘Sleep’ State. And when “81h” is written to Wake [CSN], it

becomes possible to access to Configuration register of each logical device from the host.

To return from the Manual Configuration mode to PnP auto-configuration mode, the Wait for Key

command should be sent.

Note :

The Manual Configuration mode can not be used in the system with more than one OPL3-SA3’s card

installed in the ISA slot.

May 21, 1998

-19-

Share Link: