PXN20RM Datasheet, PDF (509/1376 Pages) Freescale Semiconductor, Inc – PXN20 Microcontroller

DMA Channel Multiplexer (DMA_MUX)
NOTE
Setting multiple CHCONFIG registers with the same DMA source value
results in unpredictable behavior.
Table 23-4. DMA Source Configuration
DMA Request
Channel disabled¹
Reserved
SCI_A_COMBTX
DMA_MUX
Source Input
Number
0x00
0x01
0x02
SCI_A_COMBRX
0x03
SCI_B_COMBTX
0x04
SCI_B_COMBRX
0x05
SCI_C_COMBTX
0x06
SCI_C_COMBRX
0x07
SCI_D_COMBTX
0x08
SCI_D_COMBRX
0x09
SCI_E_COMBTX
0x0A
SCI_E_COMBRX
0x0B
SCI_F_COMBTX
0x0C
SCI_F_COMBRX
0x0D
DMA Source
Description
Channel disabled
Reserved
SCI_A.SCISR1[TDRE] ||
SCI_A.SCISR1[TC] ||
SCI_A.LINSTAT1[TXRDY]
SCI_A.SCISR1[RDRF] ||
SCI_A.LINSTAT1[RXRDY]
SCI_B.SCISR1[TDRE] ||
SCI_B.SCISR1[TC] ||
SCI_B.LINSTAT1[TXRDY]
SCI_B.SCISR1[RDRF] ||
SCI_B.LINSTAT1[RXRDY]
SCI_C.SCISR1[TDRE] ||
SCI_C.SCISR1[TC] ||
SCI_C.LINSTAT1[TXRDY]
SCI_C.SCISR1[RDRF] ||
SCI_C.LINSTAT1[RXRDY]
SCI_D.SCISR1[TDRE] ||
SCI_D.SCISR1[TC] ||
SCI_D.LINSTAT1[TXRDY]
SCI_D.SCISR1[RDRF] ||
SCI_D.LINSTAT1[RXRDY]
SCI_E.SCISR1[TDRE] ||
SCI_E.E.SCISR1[TC] ||
SCI_E.LINSTAT1[TXRDY]
SCI_E.SCISR1[RDRF] ||
SCI_E.LINSTAT1[RXRDY]
SCI_F.SCISR1[TDRE] ||
SCI_F.SCISR1[TC] ||
SCI_F.LINSTAT1[TXRDY]
SCI_F.SCISR1[RDRF] ||
SCI_F.LINSTAT1[RXRDY]
Channel disabled
Reserved
SCI_A combined DMA request of the transmit
data register empty, transmit complete, and LIN
transmit data ready DMA requests
SCI_A combined DMA request of the receive
data register full and LIN receive data ready DMA
requests
SCI_B combined DMA request of the transmit
data register empty, transmit complete, and LIN
transmit data ready DMA requests
SCI_B combined DMA request of the receive
data register full and LIN receive data ready DMA
requests
SCI_C combined DMA request of the transmit
data register empty, transmit complete, and LIN
transmit data ready DMA requests
SCI_C combined DMA request of the receive
data register full and LIN receive data ready DMA
requests
SCI_D combined DMA request of the transmit
data register empty, transmit complete, and LIN
transmit data ready DMA requests
SCI_D combined DMA request of the receive
data register full and LIN receive data ready DMA
requests
SCI_E combined DMA request of the transmit
data register empty, transmit complete, and LIN
transmit data ready DMA requests
SCI_E combined DMA request of the receive
data register full and LIN receive data ready DMA
requests
SCI_F combined DMA request of the transmit
data register empty, transmit complete, and LIN
transmit data ready DMA requests
SCI_F combined DMA request of the receive
data register full and LIN receive data ready DMA
requests
Freescale Semiconductor
PXN20 Microcontroller Reference Manual, Rev. 1
23-5