DM9161A_09 Datasheet, PDF (4/45 Pages) Davicom Semiconductor, Inc. – 10/100 Mbps Fast Ethernet Physical Layer Single Chip Transceiver

3. Block Diagram
DM9161A
10/100 Mbps Fast Ethernet Physical Layer Single Chip Transceiver
25M OSCI
TX CGM
LED1-4#
LED
Driver
MII
Signals
4B/5B
Encoder
Scrambler
Parallel
to Serial
NRZ
to
NRZI
NRZI to
MLT-3
MLT-3
Driver
100TXD+/-
MII
Interface/
Control
25M CLK
Rise/Fall
Time
CTL
125M CLK
AutoMDIX
4B/5B
Decoder
Code-
group
Alignment
Descrambler
Serial to
Parallel
Digital
Logic
NRZI
to
NRZ
RX
CRM
MLT-3 to
NRZI
Adaptive
EQ
RXI+/-
10BASE-T ^RX
Module _TX
RXI+/-
10TXD+/-
Register
Collision
Detection
Carrier
Sense
Auto-
Negotiation
Final
4
Version: DM9161A-DS-F01
October 16, 2009