Motorola MPC8260 User Manual

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MOTOROLA

Figure 1-6 shows a cellular base station conÞguration.

Here the MPC8260 channelizes two E1s (up to 256, 16-Kbps channels).

The local bus can control a bank of DSPs. Data to and from the DSPs can be transferred
through the parallel bus to the host port of the DSPs with the internal virtual IDMA.

The slow communication ports (SCCs, SMCs, I

2

C, SPI) can be used for management and

debug functions.

Figure 1-7 shows a telecommunications switch controller conÞguration.

MPC8260

60x Bus

SDRAM/DRAM/SRAM

Channelized Data

(up to 256 channels)

DSP Bank

on 

Local 

Bus

Local Bus

TDM0

Slaves

SMC/I

2

C/SPI/SCC

Slow

Comm

PHY

Framer

TDM1

MPC8260

10/100BaseT

60x Bus

SDRAM/DRAM/SRAM

Local Bus

SDRAM/DRAM/SRAM

ATM

Connection

Tables

10/100BaseT

SMC/I

2

C/SPI/SCC

(10BaseT)

UTOPIA Multi PHY

Slow

Comm

PHY

155 Mbps

PHY

ATM

MII

Transceiver