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SAA7780 Datasheet(PDF) 39 Page - NXP Semiconductors

Part # SAA7780
Description  ThunderBird Q3D PCI Audio Accelerator
PDF  70 Pages
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

SAA7780 Datasheet(HTML) 39 Page - NXP Semiconductors

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ThunderBird Q3D PCI Audio
SAA7780
Accelerator
Philips Semiconductors
Product Specification
1999 Sep 30
39
Thunderbird Base Address Register - Songbase (RW/RO)
SAA7780 CFG Space 0 Legacy Base Address Registers
The SAA7780 contains three legacy I/O base registers in configuration space 0. These legacy devices are the Sound
Blaster register, the AdLib registers and the MIDI interface registers. They are described in detail in the next three
tables.
Sound Blaster Base Address - SBBASE (RW/RO)
PCI CFG 0
D31
D30
D29
D28
D27
D26
D25
D24
Offset 10h
SONGBASE[31:24]
POR Value
0
0
0
0
0
0
0
0
D23
D22
D21
D20
D19
D18
D17
D16
SONGBASE[23:16]
POR Value
0
0
0
0
0
0
0
0
D15
D14
D13
D12
D11
D10
D9
D8
SONGBASE[15:8]
POR Value
0
0
0
0
0
0
0
0
D7
D6
D5
D4
D3
D2
D1
D0
SONG
BASE[7]
R
R
R
R
R
R
IO
POR Value
0
0
0
0
0
0
0
1
Bit
Name
R/W
Function
31:7
SONGBASE
RW
Thunderbird non-legacy device base address register. This register supplies
the I/O base address for the non-legacy I/O devices within the SAA7780 chip.
6:1
R
RO
Reserved. These bits are reserved a must always return a zero for plug and
play.
0
IO
RO
I/O flag. This read only bit indicates that this is an I/O range.
PCI CFG 0
D31
D30
D29
D28
D27
D26
D25
D24
Offset 14h
SBBASE[31:24]
POR Value
0
0
0
0
0
0
0
0



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