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參數(shù)資料
| 型號： | 8502 |
| 廠商： | LSI Corporation |
| 英文描述： | Ethernet MII(Media Independent Interface) to AUI(Attachment Unit Interface) Interface Adapter(以太網獨立于媒體接口與附屬單元接口適配器) |
| 中文描述： | 以太網MII（媒體獨立接口）的投資者聯(lián)盟（連接單元接口）接口適配器（以太網獨立于媒體接口與附屬單元接口適配器） |
| 文件頁數(shù)： | 4/55頁 |
| 文件大?。?/td> | 457K |
| 代理商： | 8502 |
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8502
4-4
MD400157/D
1.0 Pin Description continued
Pin #
44L
8502
16
Pin Name
I/O
Description
COL
O
Collision Output.
This Media Independent Interface output is asserted
when collision between transmit and receive data is detected.
41
MDC
I
Management Interface Clock Input.
This Management Interface clock
shifts serial data into and out of MDIO on rising edges.
35
MDIO
I/O
Management Interface Data Input/Output.
This bidirectional pin contains
serial Management Interface data that is clocked in and out on rising
edges of the MDC clock.
36
LINKI
I
Link Input.
The value on this pin is either passed through to the internal
MI serial port Link Status output bit In Register 1 or it enables the internal
Link algorithm.
Pullup
To
VCC/2
1
float =
0
=
Link Status Bit Is Set To 0 (Link Fail)
Link Status Bit Determined By The Internal Link Algorithm
Link Status Bit Is Set To 1 (Link Pass)
=
In 28L 8501, the Link Status Bit is always forced to 1 (Link Pass).
37
JABI
I
Jabber Input.
The value on this pin is passed through to the internal MI
serial port Jabber Detect output bit In Register 1.
Pullup
1 = Jabber Detect Bit Is Set To 0 (No Jabber Detect)
0 = Jabber Detect Bit Is Set To 1 (Jabber Detect)
In 28L 8501, the Jabber Detect Bit is always forced to 0 (No Jabber Detect).
9
EE_CS
O
External EEPROM Chip Select Output.
During powerup or reset, this
pin is a chip select output to an external EEPROM that can preload the
MI serial port input bits to values other than the defaults.
11
EE_CLK/
XMT_LED
O
External EEPROM Clock Output/Transmit LED.
During powerup or reset,
this pin is serial data clock output to an external EEPROM that can preload the
MI serial port input bits to values other than the defaults. Data is shifted
in and out on EE_DI and EE_DO, respectively, on rising edges of
the EE_CLK clock.
During normal operation, this pin can be used as Transmit LED and can
drive an LED to GND.
0 = No Detect
1 = Transmit Activity Detected, On for 50 mS
10
EE_DI
I
External EEPROM Data Input.
During powerup or reset, this pin is a
data input from an external EEPROM that can preload the MI serial port
input bit to values other than the defaults.
Pullup
12
EE_DO/
RCV_LED
O
External EEPROM Data Output/Receive LED.
During powerup or reset,
this pin is a data output to an external EEPROM that can preload the MI
serial port input bit to values other than the defaults.
During normal operation, this pin can be used as Receive LED and can
drive an LED to GND.
0 = No Detect
1 = Receive Activity Detected, On for 50 mS
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