ADV
ANCEINFORMA
TION
TMS320F28377S, TMS320F28376S, TMS320F28375S, TMS320F28374S
SPRS881A – AUGUST 2014 – REVISED JUNE 2015
The major elements used in full-duplex operation include:
•
A transmitter (TX) and its major registers:
–
SCITXBUF register – Transmitter Data Buffer register. Contains data (loaded by the CPU) to be
transmitted
–
TXSHF register – Transmitter Shift register. Accepts data from the SCITXBUF register and shifts
data onto the SCITXD pin, one bit at a time
•
A receiver (RX) and its major registers:
–
RXSHF register – Receiver Shift register. Shifts data in from the SCIRXD pin, one bit at a time
–
SCIRXBUF register – Receiver Data Buffer register. Contains data to be read by the CPU. Data
from a remote processor is loaded into the RXSHF register and then into the SCIRXBUF and
SCIRXEMU registers
•
A programmable baud generator
•
Data-memory-mapped control and status registers enable the CPU to access the I
2
C module registers
and FIFOs.
The SCI receiver and transmitter operate independently.
140
Specifications
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