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參數(shù)資料
| 型號(hào)： | L84302 |
| 元件分類： | 通用總線功能 |
| 英文描述： | L84302 Quad 100/10 Mbps 4-Port Ethernet Controller with RMON/SNMP Management Counters technical manual 4/02 |
| 中文描述： | L84302四100/10 Mbps的4端口以太網(wǎng)的遠(yuǎn)程監(jiān)控控制器/ SNMP管理處的技術(shù)手冊(cè)，4月2日 |
| 文件頁(yè)數(shù)： | 4/128頁(yè) |
| 文件大小： | 997K |
| 代理商： | L84302 |
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April, 2002
L84302 Quad 4-Port Ethernet Controller - Technical Manual
Copyright 1997-2002 by LSI Logic Corporation. All rights reserved.
1 Pin Description
Pin Description
Pin #
Pin Name
I/O
Description
System Interface
61
RXINTEN
I
Receive Interface Enable Input.
This active low input enables
the System Interface for a receive operation and activates the
output drivers on RXDC_[1:4] and RXRDY_[1:4]. This input is
clocked in on rising edges of the system clock, SCLK.
62
TXINTEN
I
Transmit Interface Enable Input.
This active low input enables
the System Interface for a receive operation and activates the
output drivers on TXRET_[1:4] and TXRDY_[1:4]. This input is
clocked in on rising edges of the system clock, SCLK.
65
RXRDEN
I
Receive Read Enable Input.
This input has to be asserted
active low (along with RXINTEN) in order for data on RXTX-
DATA[31:0] to be read from the receive FIFO for the selected
port. This input is clocked in on rising edges of the system clock,
SCLK.
66
TXWREN
I
Transmit Write Enable Input.
This input has to be asserted
active low (along with TXINTEN) in order for data on RXTX-
DATA[31:0] to be written into the transmit FIFO for the selected
port. This input is clocked in on rising edges of the system clock,
SCLK.
99
SCLK
I
System Interface Clock Input.
This input clocks data in and
out of the receive and transmit FIFOs on RXTXDATA[31:0]. All
System Interface inputs and outputs are also clocked in and out
on rising edges of SCLK. The SCLK clock frequency must be
between 25-50 MHz.
60
59
RXTXPS1
RXTXPS0
I
Port Select Input.
These inputs select which of the four ports
will be accessed on the System Interface.
11 = Port 4 Accessed Over System Interface
10 = Port 3 Accessed Over System Interface
01 = Port 2 Accessed Over System Interface
00 = Port 1 Accessed Over System Interface
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