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參數(shù)資料
| 型號(hào)： | AM79C974KCW |
| 廠商： | ADVANCED MICRO DEVICES INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | PCnetTM-SCSI Combination Ethernet and SCSI Controller for PCI Systems |
| 中文描述： | 2 CHANNEL(S), 10M bps, LOCAL AREA NETWORK CONTROLLER, PQFP132 |
| 封裝： | PLASTIC, QFP-132 |
| 文件頁(yè)數(shù)： | 125/153頁(yè) |
| 文件大小： | 838K |
| 代理商： | AM79C974KCW |
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AMD
P R E L I M I N A R Y
125
Am79C974
18681A-65
CPU
MEMORY
External
Peripheral
High-Density
SCSI-2
Termination
High-Density
SCSI-2
Connector
Keyboard
Connector
Bracketed card
joining ribbon cable
with high-density
SCSI-2 cable
External SCSI-2 Bus Cable
Internal SCSI bus cable
Connector for
Internal Peripheral
To DC Power
Ferrite Bead
To SCSI CLK1
and CLK2
Am79C974
to PCI Bus
always on
25
T
Figure E-3. Motherboard Layout — Approach #1
Layout #2
This approach uses a “pizza-box” type of motherboard,
which has been incorporated into PC systems and work-
stations. This design reduces the system’s height so
that its casing resembles a pizza box. This is partly the
result of a riser card that enables cards to rest on their
side instead of upright. This approach requires the fol-
lowing and is illustrated in Figure E-4:
An external connector mounted on the mothe-
rboard with routings that connect to the
Am79C974.
The Am79C974 must be as close as possible to
this external connector since this part of the SCSI
bus consists of motherboard routings (not just rib-
bon cable).
An internal connector on the motherboard to ac-
commodate internal drives.
On-board regulated terminators for SCSI drives
not mounted within the system. However, should
the user decide to connect a drive internally, termi-
nators are not needed.
If on-board regulated terminators are used, they
should be placed within .1 m (3.937 in) from the
Am79C974.
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| AM79C973KCW | PCnet⑩-FAST III Single-Chip 10/100 Mbps PCI Ethernet Controller with Integrated PHY |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AM79C975 | 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:PCnet⑩-FAST III Single-Chip 10/100 Mbps PCI Ethernet Controller with Integrated PHY |
| AM79C975BKC\\W | 制造商:Advanced Micro Devices 功能描述: |
| AM79C975BKC\W | 制造商:Advanced Micro Devices 功能描述: |
| AM79C975BKD\\W | 制造商:Advanced Micro Devices 功能描述: |
| AM79C975BKD\W | 制造商:Advanced Micro Devices 功能描述:PCnet-FAST III Single-Chip 10/100 Mbps PCI Ethernet Controller with Integrated PHY 制造商:AMD (Advanced Micro Devices) 功能描述:PCnet-FAST III Single-Chip 10/100 Mbps PCI Ethernet Controller with Integrated PHY |
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