Motorola MPC860 PowerQUICC User Manual page 590

Part V. The Communications Processor Module
Figure 21-1 shows the SI block diagram.
U-Bus
Tx / Rx
Route
Mode Command Status Clock
RAM
SI RAM
Register Register Register Route
Control
SMC1 SMC2 SCC1
SCC2 SCC3 SCC4
MUX MUX MUX
MUX MUX MUX
Time-Slot
Assigner
TDM a&b TDM a&b SMC1 SMC2 SCC1
SCC2 SCC3 SCC4
Strobes
Pins Pins Pins Pins Pins Pins Pins
Non-multiplexed Serial Interface (NMSI)
Figure 21-1. MPC860 SI Block Diagram
21-2 MPC860 PowerQUICC UserÕs Manual MOTOROLA