Figure 4-4. Multiplexed Mode On Scc1 Opens Additional Configuration Possibilities; Table 4-1. The Five Possible Scc Combinations - Motorola MC68302 User Manual

Integrated multiprotocol processor

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Table of Contents

Figure 4-4. Multiplexed Mode on SCC1 Opens Additional

There are five serial channel physical interface combinations for the three SCCs (see Table

NOTE: MUX is deﬁned as one of the following: IDL, GCI, or PCM highway.

The PCM highway interface is a flexible time-division multiplexed interface. It allows the

MC68302 to connect to popular time-slot interfaces such as T1 and CEPT as well as user-

defined time-slot interfaces.

The IDL and GCI (IOM-2) interfaces are used to connect to semiconductor devices that sup-

port the Integrated Services Digital Network (ISDN). IDL and GCI allow the MC68302 to

communicate over any of the 2B + D ISDN basic rate channels.

Configuration Possibilities

MC68302 USER'S MANUAL

Communications Processor (CP)

SERIAL CHANNELS

PHYSICAL I/F

LAYER 1 PINS.

MUX = (IDL, GCI, OR PCM)

NMSI2 PINS OR

P I/O IF MUX IS CHOSEN

NMSI3 PINS OR

P I/O IF MUX IS CHOSEN