參數(shù)資料
型號(hào)： AM79C970
廠商： Advanced Micro Devices, Inc.
英文描述： PCnetTM-PCI Single-Chip Ethernet Controller for PCI Local Bus
中文描述： PCnetTM - PCI單芯片以太網(wǎng)控制器的PCI總線
文件頁數(shù)： 19/168頁
文件大?。?/td> 943K
代理商： AM79C970
AMD
P R E L I M I N A R Y
1-886
Am79C970
Attachment Unit Interface
CI
±
Collision In
Input
A differential input pair signaling the PCnet-PCI control-
ler that a collision has been detected on the network me-
dia, indicated by the CI
±
inputs being driven with a
10MHz pattern of sufficient amplitude and pulse width
to meet ISO 8802-3 (IEEE/ANSI 802.3) standards. Op-
erates at pseudo ECL levels.
DI
±
Data In
Input
A differential input pair to the PCnet-PCI controller car-
rying Manchester encoded data from the network. Oper-
ates at pseudo ECL levels.
DO
±
Data Out
Output
A differential output pair from the PCnet-PCI controller
for transmitting Manchester encoded data to the net-
work. Operates at pseudo ECL levels.
Twisted-Pair Interface
RXD
±
10BASE-T Receive Data
Input
10BASE-T port differential receivers.
TXD
±
10BASE-T Transmit Data
Output
10BASE-T port differential drivers.
TXP
±
10BASE-T Pre-Distortion Control
Output
These outputs provide transmit pre-distortion control in
conjunction with the 10BASE-T port differential drivers.
Test Interface
NOUT
NAND Tree Out
Output
The results of the NAND tree testing can be observed on
the NOUT pin. NOUT will be constantly high, when
RST
is deasserted.
Power Supply Pins
Analog Power Supply Pins
AV
DD
Analog Power (4 Pins)
Power
There are four analog +5 V supply pins. Special atten-
tion should be paid to the printed circuit board layout to
avoid excessive noise on these lines. Refer to Appendix
B and the PCnet Family Technical Manual(PID
#18216A) for details.
AV
SS
Analog Ground (2 Pins)
Power
There are two analog ground pins. Special attention
should be paid to the printed circuit board layout to avoid
excessive noise on these lines. Refer to Appendix B and
the PCnet Family Technical Manual(PID #18216A) for
details.
Digital Power Supply Pins
V
DD
Digital Power (6 Pins)
Power
There are 6 power supply pins that are used by the inter-
nal digital circuitry. All V
DD
pins must be connected to a
+5 V supply.
V
DDB
I/O Buffer Power (4 Pins)
Power
There are 4 power supply pins that are used by the PCI
bus Input/Output buffer drivers. All V
DDB
pins must be
connected to a +5 V supply.
V
SS
Digital Ground (12 Pins)
Ground
There are 12 ground pins that are used by the internal
digital circuitry.
V
SSB
I/O Buffer Ground (8 Pins)
Ground
There are 8 ground pins that are used by the PCI bus In-
put/Output buffer drivers.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AM79C970A 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:PCnet-PCI II Single-Chip Full-Duplex Ethernet Controller for PCI Local Bus Product
AM79C970AKC 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:PCnet-PCI II Single-Chip Full-Duplex Ethernet Controller for PCI Local Bus Product
AM79C970AKC\\W 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Advanced Micro Devices 功能描述:
AM79C970AKC\W 制造商:Rochester Electronics LLC 功能描述:- Bulk
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