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MPC8280 Datasheet(PDF) 1217 Page - Freescale Semiconductor, Inc

Part # MPC8280
Description  PowerQUICC??II Family Reference Manual
PDF  1386 Pages
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Manufacturer  FREESCALE [Freescale Semiconductor, Inc]
Direct Link  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

MPC8280 Datasheet(HTML) 1217 Page - Freescale Semiconductor, Inc

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MPC8280 PowerQUICC II Family Reference Manual, Rev. 1
Freescale Semiconductor
35-1
Chapter 35
ATM Transmission Convergence Layer
NOTE
The functionality described in this chapter is available only on the
MPC8280.
The MPC8280 can support applications which receive ATM traffic over the standard serial protocols like
E1, T1, and xDSL via its serial interface (SIx TDMx) ports because the ATM TC-layer functionality is
implemented internally. This allows the use of standard low-cost PHY devices in system applications
instead of PHYs that support UTOPIA bus devices.
A typical TC layer application requires the use of one SI TDM channel per TC block. As shown in
Figure 35-1, all TC blocks are internally connected to FCC2. In addition, Figure 35-1 shows FCC1
connected to a UTOPIA 16-bit MPHY bus which can be routed outside and operated independently of the
TC blocks.
Figure 35-1. Serial ATM Using FCC2 and TC Blocks (Single Channel)
FCC2
FCC1
UTOPIA level-2 8-/16-bit bus
DPR
TDMx
FCC3
TC
SIx
UTOPIA level-2 8-bit bus
Blocks



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