lxt9781 Intel Corporation, lxt9781 Datasheet - Page 9

• Manufacturer Part Number: lxt9781
• Description: Fast Ethernet 10/100 Multi-port Transceiver With Rmii
• Manufacturer: Intel Corporation

Datasheet
RMII
RMII
Figure 1. LXT9781 Block Diagram
CRS_DVn
ADD<4:0>
TXDn_0
TXDn_1
RXDn_0
RXDn_1
RXERn
QSTAT
TXENn
MDINT
QCLK
MDIO
MDC
Mgmt Counters
Register Set
Carrier Sense
Error Detect
Data Valid
Management /
Mode Select
Register Set
Parallel/Serial
Fast Ethernet 10/100 Multi-Port Transceiver with RMII — LXT9761/9781
Converter
Logic
Converter
Serial to
Parallel
Negotiation
Generator
100
10
Clock
Auto
Descrambler
Manchester
Per-Port Functions
Decoder &
Decoder
Global Functions
Manchester
Scrambler
& Encoder
Encoder
100
OSP
10
CIM
Slicer
Select
Media
TM
OSP
Shaper
Pulse
TM
with BaseLine
Adaptive EQ
Cancellation
PORT 0
OSP
Wander
PORT 1
PORT 2
TP
Driver
ECL
Driver
TM
PORT 3
Generator
PORT 4
Clock
PORT 5
+
+
-
-
PORT 6
100TX
100FX
10BT
PORT 7
+
+
+
-
-
-
Pwr Supply /
PwrDown
TP / Fiber
TP / Fiber
Out
In
8
REFCLK
VCC
GND
PWRDWN
RESET
LEDS<7:0>
LEDLATCH
LEDCLK
TPFOPn
TPFONn
SDn/TXn
TPFIPn
TPFINn
9