5.1 OVERVIEW
Synchronous serial ports, or SPORTs, support a variety of serial data
communications protocols and can provide a direct interconnection
between processors in a multiprocessor system.
These ADSP-2100 family processors contain serial ports:
Number of
Processor Serial Ports
ADSP-2101 2
ADSP-2105 1
ADSP-2115 2
ADSP-2111 2
ADSP-2171 2
ADSP-2181 2
ADSP-21msp58/59 2
The serial ports, designated SPORT0 and SPORT1, have some differences
that are described in this chapter. On the ADSP-2105, only SPORT1 is
provided.
5.2 BASIC SPORT
DESCRIPTION
Each SPORT has a five-pin interface:
Pin Name Function
SCLK Serial clock
RFS Receive frame synchronization
TFS Transmit frame synchronization
DR Serial data receive
DT Serial data transmit
Table 5.1 SPORT External Interface
5 – 1
5
Serial Ports
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