AM79C873 Advanced Micro Devices, AM79C873 Datasheet - Page 2

• Manufacturer Part Number: AM79C873
• Description: NetPHY -1 10/100 Mbps Ethernet Physical Layer Single-Chip Transceiver with 100BASE-FX Support
• Manufacturer: Advanced Micro Devices

BLOCK DIAGRAM
2
Signals
MII
Interface/
Control
MII
Encoder
Decoder
4B/5B
4B/5B
Register
Scrambler
Alignment
Code-
group
P R E L I M I N A R Y
Detection
Collision
25M OSCI
Descrambler
TX CGM
to Serial
Parallel
Am79C873
25M CLK
Digital
Logic
NRZI
NRZ
Carrier
Sense
to
Serial to
Parallel
NRZI to
MLT-3
125M CLK
NRZI to
NRZ
Negotiation
LED1-4
Driver
LED
Auto-
Rise/Fall
MLT-3
Driver
Time
CTL
CRM
RX
10BASE-T
Module
MLT-3 to
NRZI
Receiver
RX
TX
Driver
PECL
PECL
Adaptive
EQ
22164A-1
FXTD
100TXD
FXRD
RXI
FXSD+
RXI
10TXD