參數(shù)資料
型號(hào)： KSZ8999I
廠商： Micrel Inc
文件頁數(shù)： 5/52頁
文件大?。?/td> 0K
描述： IC SWITCH 9-PORT 10/100 208PQFP
標(biāo)準(zhǔn)包裝： 24
系列： *
類型： *
應(yīng)用： *
安裝類型： 表面貼裝
封裝/外殼： 208-MQFP，208-PQFP
供應(yīng)商設(shè)備封裝： 208-PQFP（28x28）
包裝： 管件
產(chǎn)品目錄頁面： 1081 (CN2011-ZH PDF)
配用： 576-1644-ND - BOARD EVALUATION FOR KSZ8999
其它名稱： 576-2128
KSZ8999I-ND
January 2005
13
KS8999
Micrel
I/O Descriptions
Group
I/O Names
Active Status
Description
PHY
RXP[1:8]
Analog
Differential inputs (receive) for connection to media (transformer or fiber module)
RXM[1:8]
TXP[1:8]
Analog
Differential outputs (transmit) for connection to media (transformer or fiber module)
TXM[1:8]
FXSD[1:8]
H
Fiber signal detect – connect to fiber signal detect output on fiber module with
appropriate voltage divider if needed. Tie low for copper mode.
ISET
Analog
Transmit Current Set. Connecting an external reference resistor to set transmitter
output current. This pin connects to a 3K
1% resistor to ground if a transformer with
1:1 turn ratio is used.
MII
MRXD[0:3]
H
Four bit wide data bus for receiving MAC frames
MRXDV
H
Receive data valid
MCOL
H
Receive collision detection
MCRS
H
Carrier sense
MTXD[0:3]
H
Four bit wide data bus for transmitting MAC frames
MTXEN
H
Transmit enable
MTXER
H
Transmit error
MRXC
Clock
MII receive clock
MTXC
Clock
MII transmit clock
SNI
MTXD[0]
H
Serial transmit data
MTXEN
H
Transmit enable
MRXD[0]
H
Serial receive data
MRXDV
H
Receive carrier sense/data valid
MCOL
H
Collision detection
MRXC
Clock
SNI receive clock
MTXC
Clock
SNI transmit clock
IND
LED[1:9][0]
L
Output (after reset)
Mode 0: Speed (on = 100/off = 10)
Mode 1: 10/100 + link + activity
10Mb link activity = slow blink (non-periodic blinking)
100Mb link activity = fast blink (non-periodic blinking)
Mode 2: Collision (on = collision/off = no collision)
Mode 3: Speed (on = 100/off = 10)
I/O Grouping
Group Name
Description
PHY
Physical Interface
MII
Media Independent Interface
SNI
Serial Network Interface
IND
LED Indicators
UP
Unmanaged Programmable
CTRL
Control and Miscellaneous
TEST
Test (Factory)
PWR
Power and Ground
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