NXP Semiconductors PXN2020 - Page 509

DMA Channel Multiplexer (DMA_MUX)
PXN20 Microcontroller Reference Manual, Rev. 1
Freescale Semiconductor 23-5
NOTE
Setting multiple CHCONFIG registers with the same DMA source value
results in unpredictable behavior.
Table 23-4. DMA Source Configuration
DMA Request
DMA_MUX
Source Input
Number
DMA Source Description
Channel disabled
1
0x00 Channel disabled Channel disabled
Reserved 0x01 Reserved Reserved
SCI_A_COMBTX 0x02 SCI_A.SCISR1[TDRE] ||
SCI_A.SCISR1[TC] ||
SCI_A.LINSTAT1[TXRDY]
SCI_A combined DMA request of the transmit
data register empty, transmit complete, and LIN
transmit data ready DMA requests
SCI_A_COMBRX 0x03 SCI_A.SCISR1[RDRF] ||
SCI_A.LINSTAT1[RXRDY]
SCI_A combined DMA request of the receive
data register full and LIN receive data ready DMA
requests
SCI_B_COMBTX 0x04 SCI_B.SCISR1[TDRE] ||
SCI_B.SCISR1[TC] ||
SCI_B.LINSTAT1[TXRDY]
SCI_B combined DMA request of the transmit
data register empty, transmit complete, and LIN
transmit data ready DMA requests
SCI_B_COMBRX 0x05 SCI_B.SCISR1[RDRF] ||
SCI_B.LINSTAT1[RXRDY]
SCI_B combined DMA request of the receive
data register full and LIN receive data ready DMA
requests
SCI_C_COMBTX 0x06 SCI_C.SCISR1[TDRE] ||
SCI_C.SCISR1[TC] ||
SCI_C.LINSTAT1[TXRDY]
SCI_C combined DMA request of the transmit
data register empty, transmit complete, and LIN
transmit data ready DMA requests
SCI_C_COMBRX 0x07 SCI_C.SCISR1[RDRF] ||
SCI_C.LINSTAT1[RXRDY]
SCI_C combined DMA request of the receive
data register full and LIN receive data ready DMA
requests
SCI_D_COMBTX 0x08 SCI_D.SCISR1[TDRE] ||
SCI_D.SCISR1[TC] ||
SCI_D.LINSTAT1[TXRDY]
SCI_D combined DMA request of the transmit
data register empty, transmit complete, and LIN
transmit data ready DMA requests
SCI_D_COMBRX 0x09 SCI_D.SCISR1[RDRF] ||
SCI_D.LINSTAT1[RXRDY]
SCI_D combined DMA request of the receive
data register full and LIN receive data ready DMA
requests
SCI_E_COMBTX 0x0A SCI_E.SCISR1[TDRE] ||
SCI_E.E.SCISR1[TC] ||
SCI_E.LINSTAT1[TXRDY]
SCI_E combined DMA request of the transmit
data register empty, transmit complete, and LIN
transmit data ready DMA requests
SCI_E_COMBRX 0x0B SCI_E.SCISR1[RDRF] ||
SCI_E.LINSTAT1[RXRDY]
SCI_E combined DMA request of the receive
data register full and LIN receive data ready DMA
requests
SCI_F_COMBTX 0x0C SCI_F.SCISR1[TDRE] ||
SCI_F.SCISR1[TC] ||
SCI_F.LINSTAT1[TXRDY]
SCI_F combined DMA request of the transmit
data register empty, transmit complete, and LIN
transmit data ready DMA requests
SCI_F_COMBRX 0x0D SCI_F.SCISR1[RDRF] ||
SCI_F.LINSTAT1[RXRDY]
SCI_F combined DMA request of the receive
data register full and LIN receive data ready DMA
requests