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| 型號： | 24888 |
| 英文描述： | Preliminary AMD-8151 HyperTransport AGP3.0 Graphics Tunnel Data Sheet |
| 中文描述： | 初步的AMD - 8151 HyperTransport的AGP3.0圖形隧道數(shù)據(jù)表 |
| 文件頁數(shù)： | 24/45頁 |
| 文件大?。?/td> | 755K |
| 代理商： | 24888 |
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24888 Rev 3.02 - June 17, 2003
AMD-8151
TM
AGP Tunnel Data Sheet
24
AGP Device GART Pointer
DevA:0xB8
This register controls no hardware in the IC. It is expected that the state of this register is copied into the host
by software.
Default: 0000 0000 0000 0000h
Bits
Description
63:32
GARTHI: GART base address register high.
31:12
GARTLO: GART base address register low.
11:0
Reserved.
Attribute: Read-write.
Link Command Register
DevA:0xC0
Default: 0060 0008h
Bits
Description
31:29
Slave/primary interface type.
Read only.
28
DOUI: drop on uninitialized link.
Read-write. This specifies the behavior of transactions that are
sent to uninitialized links. 0=Transactions that are received by the IC and forwarded to a side of the
tunnel, when DevA:0x[C4/C8][INITCPLT and ENDOCH] for that side of the tunnel are both low,
remain in buffers awaiting transmission indefinitely (waiting for INITCPLT to be set high). 1=Trans-
actions that are received by the IC and forwarded to a side of the tunnel, when
DevA:0x[C4/C8][INITCPLT and ENDOCH] for that side of the tunnel are both low, behave as if
ENDOCH were high. Note: this bit is cleared by PWROK reset but not by RESET#.
27
DEFDIR: default direction.
Read-write. 0=Send AGP master requests to the master link host as
specified by DevA:0xC0[MASHST]. 1=Send AGP master requests to the opposite side of the tunnel.
Attribute: See below.
11:0
APSIZE: graphic virtual memory aperture size.
Read-write (except bits[11, 7:6, and 2:0] which
are read only, fixed at the default value). This field specifies the size of the aperture pointed to by
DevA:0x10. This field also controls read only versus read-write control over several bits in
DevA:0x10. It is encoded as follows:
DevA:0x10
read-write bits read-only bits
[63:25]
[63:26]
[63:27]
[63:28]
[63:29]
[63:30]
[63:31]
DevA:0x10
Bits[10, 9, 8, 5, 4, 3]
1 1 1 1 1 1
1 1 1 1 1 0
1 1 1 1 0 0
1 1 1 0 0 0
1 1 0 0 0 0
1 0 0 0 0 0
0 0 0 0 0 0
Aperture size
32 MB
64 MB
128 MB
256 MB
512 MB
1024 MB
2048 MB
[24:0]
[25:0]
[26:0]
[27:0]
[28:0]
[29:0]
[30:0]
It is expected that the state of this field is copied into the host by software. Note: DevA:0x10[2] is
“read; write once,” even though it is shown as read-only above. Also, based on the state of
DevA:0x10[2], DevA:0x10[63:32] may be read-only, all zeros.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 248-8886-007 | 制造商:ITT Interconnect Solutions 功能描述:248-8886-007 / 248-8886-007 / D Sub |
| 248-8887-007 | 制造商:ITT Interconnect Solutions 功能描述:248-8887-007 / 248-8887-007 / D Sub |
| 248-8888-007 | 制造商:ITT Interconnect Solutions 功能描述:248-8888-007 / 248-8888-007 / D Sub |
| 248-8889-007 | 制造商:ITT Interconnect Solutions 功能描述:248-8889-007 / 248-8889-007 / D Sub |
| 248-8890-007 | 制造商:ITT Interconnect Solutions 功能描述:248-8890-007 / 248-8890-007 / D SUB |
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