MC68LC302 Datasheet, PDF (70/169 Pages) Motorola, Inc – Low Power Integrated Multiprotocol Processor Reference Manual

Communications Processor (CP)
SDIAG1–SDIAG0—Serial Interface Diagnostic Mode (NMSI1 Pins Only)
00 = Normal operation
01 = Automatic echo
10 = Internal loopback
11 = Loopback control
SDC2—Serial Data Strobe Control 2
0 = SDS2 signal is asserted during the B2 channel
1 = SDS1 signal is asserted during the B2 channel
SDC1—Serial Data Strobe Control 1
0 = SDS1 signal is asserted during the B1 channel
1 = SDS2 signal is asserted during the B1 channel
B2RB, B2RA—B2 Channel Route in IDL/GCI Mode or CH-3 Route in PCM Mode
00 = Channel not supported
01 = Route channel to SCC1
10 = Route channel to SCC2 (if MSC2 is cleared)
11 = Route channel to SCC3 (Not Supported in the MCMC68LC302)
B1RB, B1RA—B1 Channel Route in IDL/GCI Mode or CH-2 Route in PCM Mode
00 = Channel not supported
01 = Route channel to SCC1
10 = Route channel to SCC2 (if MSC2 is cleared)
11 = Route channel to SCC3 (Not Supported in the MCMC68LC302)
DRB, DRA—D-Channel Route in IDL/GCI Mode or CH-1 Route in PCM Mode
00 = Channel not supported
01 = Route channel to SCC1
10 = Route channel to SCC2 (if MSC2 is cleared)
11 = Route channel to SCC3 (Not Supported in the MC68LC302)
MSC3—SCC3 Connection (Not Supported in the MC68LC302)
MSC2—SCC2 Connection
0 = SCC2 is connected to the multiplexed serial interface (PCM, IDL, or GCI) chosen
in MS1–MS0. NMSI2 pins are all available for other purposes.
1 = SCC2 is not connected to a multiplexed serial interface but is either connected di-
rectly to the NMSI2 pins or not used. The choice of general-purpose I/O port pins
versus SCC2 functions is made in the port A control register.
MS1—MS0—Mode Supported
00 = NMSI Mode
01 = PCM Mode
10 = IDL Mode
11 = GCI Interface
MOTOROLA
MC68LC302 REFERENCE MANUAL
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