Motorola MPC8260 - Manual (Page 84)

1-14 MPC8260 PowerQUICC II UserÕs Manual MOTOROLA
Part I. Overview
1.7.1.4 Cellular Base Station
Figure 1-6 shows a cellular base station conÞguration.
Figure 1-6. Cellular Base Station Configuration
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.
1.7.1.5 Telecommunications Switch Controller
Figure 1-7 shows a telecommunications switch controller conÞguration.
Figure 1-7. Telecommunications Switch Controller Configuration
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