Essi Transmit 0 Enable (Te0) Crb Bit 16 - Motorola DSP56305 User Manual

Enhanced Synchronous Serial Interface (ESSI)
ESSI Programming Model
7.4.2.16

ESSI Transmit 0 Enable (TE0) CRB Bit 16

The TE0 bit enables the transfer of data from TX1 to Transmit Shift Register 0. TE0 is
functional when the ESSI is in either Synchronous or Asynchronous mode.
When TE0 is set and a frame sync is detected, the transmitter 0 is enabled for that frame.
When TE0 is cleared, transmitter 0 is disabled after completing transmission of data
currently in the ESSI Transmit Shift Register. The STD output is tri-stated, and any data
present in TX0 will not be transmitted (i.e., data can be written to TX0 with TE0 cleared;
the TDE bit is cleared, but data will not be transferred to the Transmit Shift Register 0).
The TE0 bit is cleared by either a hardware reset signal or a software reset instruction.
The On-demand mode transmit enable sequence can be the same as the Normal mode,
or TE0 can be left enabled.
Note: Transmitter 0 is the only transmitter that can operate in Asynchronous mode
(SYN = 0). TE0 does not affect the generation of frame sync or output flags.
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