参数资料
型号: KSZ8999I
厂商: Micrel Inc
文件页数: 5/52页
文件大小: 0K
描述: IC SWITCH 9-PORT 10/100 208PQFP
标准包装: 24
系列: *
类型: *
应用: *
安装类型: 表面贴装
封装/外壳: 208-MQFP,208-PQFP
供应商设备封装: 208-PQFP(28x28)
包装: 管件
产品目录页面: 1081 (CN2011-ZH PDF)
配用: 576-1644-ND - BOARD EVALUATION FOR KSZ8999
其它名称: 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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