McSPI Registers
Table 24-14. McSPI Interrupt Status Register (MCSPI_IRQSTATUS) Field Descriptions (continued)
Bit
Field
Value
Description
2
RX0_FULL
Receiver register full or almost full. Channel 0. Receiver register full or almost full. Channel
0
Write 0
Event status bit is unchanged.
Read 0
Event false.
Write 1
Event status bit is reset.
Read 1
Event is pending.
1
TX0_UNDERFLOW
Transmitter register underflow. Channel 0.
Write 0
Event status bit is unchanged.
Read 0
Event false.
Write 1
Event status bit is reset.
Read 1
Event is pending.
0
TX0_EMPTY
Transmitter register empty or almost empty. Channel 0. This bit indicate FIFO almost full
status when built-in FIFO is use for transmit register (MCSPI_CH3CONF[FFE0W] is set).
Write 0
Event status bit is unchanged.
Read 0
Event false.
Write 1
Event status bit is reset.
Read 1
Event is pending.
4039
SPRUH73H – October 2011 – Revised April 2013
Multichannel Serial Port Interface (McSPI)
Copyright © 2011–2013, Texas Instruments Incorporated