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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)： | 126/168頁 |
| 文件大?。?/td> | 943K |
| 代理商： | AM79C970 |
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P R E L I M I N A R Y
AMD
1-993
Am79C970
RMD2
Bit
Name
Description
31–24
RCC
Receive Collision Count. Indi-
cates the accumulated number of
collisions on the network since
the last packet was received, ex-
cluding collisions that occurred
during transmissions from this
node. The PCnet-PCI implemen-
tation of this counter may not be
compatible with the ILACC RCC
definition. If network statistics are
to be monitored, then CSR114
should be used for the purpose of
monitoring Receive collisions in-
stead of these bits.
Runt Packet Count. Indicates the
accumulated number of runts
that were addressed to this node
since the last time that a receive
packet was successfully re-
ceived and its corresponding
RMD2 ring entry was written to
by the PCnet-PCI controller. In
order to be included in the RPC
value, a runt must be long
enough to meet the minimum re-
quirement of the internal address
matching logic. The minimum
23–16
RPC
requirement for a runt to pass the
internal
address
mechanism is: 18 bits of valid
preamble plus a valid SFD de-
tected, followed by 7 bytes of
frame data. This requirement is
unvarying, regardless of the ad-
dress matching mechanisms in
force at the time of reception.
(i.e. physical, logical, broadcast
or promiscuous). The PCnet-
PCI implementation of this
counter may not be compatible
with the ILACC RPC definition.
This field is reserved. PCnet-PCI
controller will write ZEROs to
these locations.
MESSAGE BYTE COUNT is the
length in bytes of the received
message, expressed as an un-
signed binary integer. MCNT is
valid only when ERR is clear and
ENP is set. MCNT is written by
the PCnet-PCI controller and
cleared by the host.
matching
15–12 ZEROS
11–0
MCNT
RMD3
Bit
Name
Description
31–0
RES
Reserved locations.
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| AM79C971VCW | PCnet⑩-FAST Single-Chip Full-Duplex 10/100 Mbps Ethernet Controller for PCI Local Bus |
| AM79C971 | PCnet⑩-FAST Single-Chip Full-Duplex 10/100 Mbps Ethernet Controller for PCI Local Bus |
| AM79C971KCW | IC LOGIC 16211 24-BIT FET BUS SWITCH -40+85C TSSOP-56 35/TUBE |
| AM79C972BKCW | PCnet⑩-FAST+ Enhanced 10/100 Mbps PCI Ethernet Controller with OnNow Support |
| AM79C972BKIW | PCnet⑩-FAST+ Enhanced 10/100 Mbps PCI Ethernet Controller with OnNow Support |
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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