YMF754-R datasheet(11/60 Pages) YAMAHA

11 / 60 page

YMF754

June 28, 1999

-11-

00-01h: Vendor ID

Read Only

Default: 1073h

Access Bus Width: 8, 16, 32-bit

b15

b14

b13

b12

b11

b10

Vendor ID

b[15:0] ........Vendor ID

This register contains the YAMAHA Vendor ID registered in Revision 2.2.

This register is hardwired to

1073h.

02-03h: Device ID

Read Only

Default: 0012h

Access Bus Width: 8, 16, 32-bit

b15

b14

b13

b12

b11

b10

Device ID

b[15:0] ........Device ID

This register contains the Device ID of DS-1E.

This register is hardwired to 0012h.

04-05h: Command

Read / Write

Default: 0000h

Access Bus Width: 8, 16, 32-bit

b15

b14

b13

b12

b11

b10

SER

PER

BME

IOS

b0................IOS: I/O Space

This bit is a dummy one that is capable of writing.

This bit indicates for BIOS or OS that DS-1E

includes I/O devices.

b1................MS: Memory Space

This bit enables DS-1E to response to Memory Space Access.

“0”: DS-1E ignores Memory Space Access.

(default)

“1”: DS-1E responds to Memory Space Access.

b2................BME: Bus Master Enable

This bit enables DS-1E to act as a master device on the PCI bus.

“0”: Do not set DS-1E to be the master device.

(default)

“1”: Set DS-1E to be the master device.

YMF754-R 数据表(PDF) 11 Page - YAMAHA CORPORATION

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YMF754-R 数据表(PDF) 11 Page - YAMAHA CORPORATION

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