参数资料
型号: KSZ8993
厂商: Micrel Inc
文件页数: 2/35页
文件大小: 0K
描述: IC SWITCH 10/100 3PORT 128PQFP
标准包装: 66
系列: *
类型: *
应用: *
安装类型: 表面贴装
封装/外壳: 128-BFQFP
供应商设备封装: 128-PQFP(14x20)
包装: 托盘
产品目录页面: 1081 (CN2011-ZH PDF)
其它名称: 576-1032
KS8993
Micrel
KS8993
10
May 2005
I/O Descriptions
Group
I/O Names
Active Status
Description
PHY
RXP[1:3]
Analog
Differential inputs (receive) for connection to media (transformer or fiber module).
RXM[1:3]
TXP[1:3]
Analog
Differential outputs (transmit) for connection to media (transformer or fiber module).
TXM[1:3]
FXSD[1:3]
H
Fiber signal detect - connect to fiber signal detect output on fiber module. Tie low
for 100TX mode.
VREF[1:3]
Analog
Center tap transformer reference for transmit data.
ISET
Analog
Transmit Current Set. Connecting an external reference resistor to set transmitter
output current. This pin connects a 1% 3k
resistor if a transformer of turns ratio of
1:1 is used.
MII
See
“Table 2, MII Interconnect” for forward and reverse signal usage.
MRXD[0:3]
H
Four bit wide data bus for receiving MAC frames.
MRXDV
H
Receive data valid.
MCRS
H
Receive carrier sense.
MCOL
H
Receive collision detection.
MCOLIN
H
Collision in (for forward operation only).
MRXCLK
Clock
Receive clock.
MTXD[0:3]
H
Four bit wide data bus for transmitting MAC frames.
MTXEN
H
Transmit enable.
MTXER
H
Transmit error.
MTXCLK
Clock
Transmit clock.
SNI
MTXD[0]
H
Serial transmit data.
MTXEN
H
Transmit enable.
MTXCLK
Clock
Transmit clock.
MRXD[0]
H
Serial receive data.
MRXDV
H
Receive carrier sense/data valid.
MCOL
H
Collision detection.
MRXCLK
Clock
Receive clock.
IND
LED[1:3][0]
L
Output (after reset).
Mode 0: Speed (low = 100/high = 10).
Mode 1: Reserved.
Mode 2: Collision (toggle = collision during receiving , high = no collision).
Mode 3: Speed (low = 100/high = 10).
LED[1:3][1]
L
Output (after reset).
Mode 0: Duplex (low = full/high = half).
Mode 1: Duplex (low = full/high = half).
Mode 2: Duplex (low = full/high = half).
Mode 3: Reserved.
LED[1:3][2]
L
Output (after reset).
Mode 0: Collision (toggle = collision during receiving , high = no collision).
Mode 1: Transmit Activity (toggle during transmission, high = idle).
Mode 2: 10/link/act (constant low = link, toggle = act, constant high = no link).
Mode 3: Full-Duplex + Collision (constant low = full-duplex, toggle = collision in half.
duplex, constant high = half-duplex with no collision).
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