Figure 4-7. Idl Terminal Adaptor - Motorola MC68302 User Manual

Integrated multiprotocol processor

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Communications Processor (CP)

terminal data stream over the B channel. That SCC would be configured for HDLC mode if

V.120 rate adaption is required, or for V.110 mode if V.110 rate adaption is required. The

second B channel could be routed to the CODEC as a digital voice channel, if desired. The

SCP is used to send initialization commands and periodically check status from the S/T

transceiver. The SCC connected to the terminal would be configured for UART, BISYNC, or

DDCMP mode depending on the terminal protocol used.

ASYNCHRONOUS/

BISYNC/DDCMP

The IMP has two output data strobe lines (SDS1 and SDS2) for selecting either or both the

B1 and B2 channels. These signals are used for interfacing devices that do not support the

IDL bus. These signals, configured by the SIMASK register, are active only for bits that are

not masked. The IDL signals are as follows:

M68000/DMA/CS

Figure 4-7. IDL Terminal Adaptor

MC68302 USER'S MANUAL

CODEC/FILTER