PRELIMINARY
MPC8260TCOM User’s Manual
FUNCTIONAL DESCRIPTION
13
CHAPTER 3 - FUNCTIONAL DESCRIPTION
3•1
INTRODUCTION
This chapter details the hardware design of the MPC8260TCOM, and describes each module.
3•2
GENERAL DESCRIPTION
The MPC8260TCOM includes four parts.
•
1. M8260ADS include the MPC8260 device on board.
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2. Fast Ethernet include the LXT970 devices.
•
3. DS3 include the TXC-03401 framer and 20153G line interface module.
•
4. T1 include the TOCTL framer PM4388 and PM4314 line interface.
The following paragraphs will show the TCOM block diagram and describe each one of the board parts.
FIGURE 4-1 8260TCOM BLOCK DIAGRAM
F-Ethernet
LEVL-ONE
LXT970
MII 3v output
FRAMER
TRAN
SWITCH
TXC-03401
T3- LINE
INTERFACE
MODULE
TXC-20153D
DS3
HALO
TG22-3506ND
Transformer
RJ45
COC
8XT1
2XFAST-
ETHERNET
RJ45
CON
5v 3v
BNC
CON
BNC
CON
OUT
LINE
IN
LINE
FCC2
MCC
FCC3
MCC
FCC1
PMC TOCTL
8X FRAMER 3.3V
PMC
LIU
X4
PMC
LIU
X4
5v friendly
transformer
FRAMER
TRAN
SWITCH
TXC-03401
T3- LINE
INTERFACE
MODULE
TXC-20153D
DS3
BNC
CON
BNC
CON
OUT
LINE
IN
LINE
ADS-CONNECTORS
CONT
LOGIC
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2
data/address/Io/cont
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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