Table 2-11 Enhanced Synchronous Serial Interface 0 (Essi0) - Motorola DSP56305 User Manual

Table 2-11 Enhanced Synchronous Serial Interface 0 (ESSI0)

Signal
Type
Name
SC00 Input or
Output
PC0
SC01 Input/
Output
PC1 Input or
Output
MOTOROLA
Enhanced Synchronous Serial Interface 0 (ESSI0)
State During
Reset Stop
Input Disconnected
Input Disconnected
DSP56305 User's Manual
Signal/Connection Descriptions
Signal Description
Serial Control 0—The function of SC00 is
determined by the selection of either
Synchronous or Asynchronous mode. In
Asynchronous mode, this signal is used for the
receive clock I/O (Schmitt-trigger input). In
Synchronous mode, this signal is used either for
Transmitter 1 output or for Serial I/O Flag 0.
Port C 0—The default configuration following
reset is GPIO input PC0. When configured as
PC0, signal direction is controlled through the
Port Directions Register (PRR0). The signal can
be configured as ESSI signal SC00 through the
Port Control Register (PCR0).
This input is 5 V tolerant.
Serial Control 1—The function of SC01 is
determined by the selection of either
Synchronous or Asynchronous mode. In
Asynchronous mode, this signal is used for the
receiver frame sync I/O. In Synchronous mode,
this signal is used either for Transmitter 2
output or for Serial I/O Flag 1.
Port C 1—The default configuration following
reset is GPIO input PC1. When configured as
PC1, signal direction is controlled through
PRR0. The signal can be configured as an ESSI
signal SC01 through PCR0.
This input is 5 V tolerant.
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