Interrupts And Dma Events Generated By A Mcbsp - Texas Instruments TMS320VC5501 Reference Manual

2.7 Interrupts and DMA Events Generated by a McBSP

Table 2−2. Interrupts and DMA Events Generated by a McBSP
SPRU592E
The McBSP sends notification of important events to the CPU and the DMA
controller via the internal signals shown in Table 2−2.
Internal Signal Description
RINT Receive interrupt
The McBSP can send a receive interrupt request to CPU based
upon a selected condition in the receiver of the McBSP (a
condition selected by the RINTM bits of SPCR1).
XINT Transmit interrupt
The McBSP can send a transmit interrupt request to CPU based
upon a selected condition in the transmitter of the McBSP (a
condition selected by the XINTM bits of SPCR2).
REVT Receive synchronization event
An REVT signal is sent to the DMA controller when data has
been received in the data receive registers (DRRs).
XEVT Transmit synchronization event
An XEVT signal is sent to the DMA controller when the data
transmit registers (DXRs) are ready to accept the next serial
word for transmission.

Interrupts and DMA Events Generated by a McBSP

McBSP Operation 2-19