- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄366550 > AM79C90 (Advanced Micro Devices, Inc.) CMOS Local Area Network Controller for Ethernet (C-LANCE) PDF資料下載
參數(shù)資料
| 型號(hào)： | AM79C90 |
| 廠商： | Advanced Micro Devices, Inc. |
| 英文描述： | CMOS Local Area Network Controller for Ethernet (C-LANCE) |
| 中文描述： | 的CMOS局域網(wǎng)控制器（丙應(yīng)聘以太網(wǎng)） |
| 文件頁(yè)數(shù)： | 26/62頁(yè) |
| 文件大?。?/td> | 437K |
| 代理商： | AM79C90 |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)當(dāng)前第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)第42頁(yè)第43頁(yè)第44頁(yè)第45頁(yè)第46頁(yè)第47頁(yè)第48頁(yè)第49頁(yè)第50頁(yè)第51頁(yè)第52頁(yè)第53頁(yè)第54頁(yè)第55頁(yè)第56頁(yè)第57頁(yè)第58頁(yè)第59頁(yè)第60頁(yè)第61頁(yè)第62頁(yè)
AMD
P R E L I M I N A R Y
26
Am79C90
The Broadcast address, which consists of all ones is a
special multicast address. Packets addressed to the
broadcast address must be received by all nodes. Since
broadcast packets are usually more common than other
multicast packets, the broadcast address should be the
first address in the multicast address list.
The Broadcast address does not go through the Logical
Address Filter and is always enabled. If the Logical Ad-
dress Filter is loaded with all zeroes, all incoming logical
addresses except broadcast will be rejected. The multi-
cast addressing in external loopback is operational only
when DTCR in the mode register is set to 1.
Destination
Address
47
1 0
CRC
Gen
32-Bit Resultant CRC
31
26
0
Logical Address
Filter
63
0
“1”
Enable
64
MUX
Select
Match*
6
*Match - 1, the packet is accepted
Match - 0, the packet is rejected
17881B-22
Figure 7. Logical Address Filter Operation
Receive Descriptor Ring Pointer
31
2 0
17881B-23
2928 24 23
3
RES
RLEN
000 ‘(Quadword
Boundary)’
RDRA (23:03)
Bit
Name
Description
31:29
RLEN
RECEIVE RING LENGTH is the
number of entries in the receive ring
expressed as a power of two.
RLEN
Number of Entries
0
1
2
3
4
5
6
7
RESERVED. Read as zeroes. Write
as zeroes.
RECEIVE DESCRIPTOR RING AD-
DRESS is the base address (lowest
address) of the Receive Descriptor
Ring.
MUST BE ZEROES. These bits are
RDRA (02:00) and must be zeroes
because the Receive Ring is aligned
on a quadword boundary.
1
2
4
8
16
32
64
128
28:24
RES
23:03
RDRA
02:00
Transmit Descriptor Ring Pointer
31
2 0
17881B-24
2928 24 23
3
RES
TLEN
000 ‘(Quadword
Boundary)’
TDRA (23:03)
31:29
TLEN
TRANSMIT RING LENGTH is the
number of entries in the Transmit
Ring expressed as a power of two.
TLEN
Number of Entries
0
1
2
3
4
5
6
7
RESERVED. Read as zeroes. Write
as zeroes.
TRANSMIT DESCRIPTOR RING
ADDRESS is the base address (low-
est address) of the Transmit De-
scriptor Ring.
MUST BE ZEROES. These bits are
TDRA (02:00) and must be zeroes
because the Transmit Ring is
aligned on a quadword boundary.
1
2
4
8
16
32
64
128
28:24
RES
23:03
TDRA
02:00
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AM79C90JC | CMOS Local Area Network Controller for Ethernet (C-LANCE) |
| AM79C90JCTR | KPTC6CG10-6P |
| AM79C90PC | CMOS Local Area Network Controller for Ethernet (C-LANCE) |
| AM79C90PCTR | CMOS Local Area Network Controller for Ethernet (C-LANCE) |
| AM79C930 | PCnet-Mobile Single-Chip Wireless LAN Media Access Controller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AM79C900 | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述: |
| AM79C900AJC | 制造商:Advanced Micro Devices 功能描述: |
| AM79C900JC | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:LAN Node Controller |
| AM79C901 | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:AMD’s Am79C901 HomePNA-Compliant Device with Motorola’s MC68360. MPC860. MPC850. and MPC8260? - (PDF) |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。