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RIVA128 Datasheet(PDF) 75 Page - STMicroelectronics

Part # RIVA128
Description  RIVA 128™ 128-BIT 3D MULTIMEDIA ACCELERATOR
PDF  77 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

RIVA128 Datasheet(HTML) 75 Page - STMicroelectronics

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128-BIT 3D MULTIMEDIA ACCELERATOR
RIVA 128
75/77
Byte offsets 0x4B - 0x48
AGP Status Register (0x4B - 0x48 = CAP_PTR+4)
0x
0x
0x
0x
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
Bits
Function
R W I
31:24
The RQ field contains the maximum number of AGP command requests this
device can have outstanding.
RQ = 0x04
R - 0x04
23:10
Reserved
R - 0
9
SBA indicates whether the RIVA 128 supports sideband addressing.
0 = Sideband addressing not supported
R - 0
8:2
Reserved
R - 0
1:0
RATE indicates the data transfer rate(s) supported by the RIVA 128.
01 = 66MHz 1x supported; 2x not supported
R - 0x01



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