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參數(shù)資料
| 型號(hào)： | RTL8208 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | REALTEK SINGLE CHIP OCTAL 10/100 MBPS FAST ETHERNET TRANSCEIVER |
| 中文描述： | 瑞昱單芯片八路10/100 Mbps快速以太網(wǎng)收發(fā)器 |
| 文件頁數(shù)： | 9/40頁 |
| 文件大?。?/td> | 546K |
| 代理商： | RTL8208 |
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RTL8208
2001/01/07
9
Rev.1.923
5.5 SMI (Serial Management Interface) Pins
Pin Name
MDIO
Pin
Type
I/O,
(Pu)
Description
Management Data I/O.
Bi-directional data interface. A 1.5K
pull-up resistor is required (as specified in IEEE802.3u).
The MAC controller access of the MII registers should be delayed at
least 700us after completion of the reset because of the internal reset
operation of the RTL8208
Management Data Clock.
0 to 25MHz clock sourced by MAC to
sample MDIO.
The MAC controller access of the MII registers should be delayed at
least 700us after completion of the reset because of the internal reset
operation of the RTL8208
112
MDC
113
I,
(Pd)
5.6 LED Pins
Pin Name
LED_DATA/
LEDMODE[1]
Pin
Type
I/O
Description
LED_DATA outputs serial status bits that can be shifted into a shift
register to be displayed via LEDs. LED_DATA is output
synchronously to LED_CLK.
This pin is latched upon reset as LEDMODE[1]
LEDMODE[1:0] controls the forms of serial LED statuses.
See LED operation mode section.
LED_CLK outputs the reference clock for the serial LED signals. This
pin is latched upon reset as LEDMODE[0]
49
LED_CLK/
LEDMODE[0]
50
I/O
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