Chapter 22 Direct Memory Access Multiplexer (Dmamux) - NXP Semiconductors freescale KV4 Series Reference Manual

Chapter 22
Direct memory access multiplexer (DMAMUX)
22.1 Chip-specific DMAMUX information
22.1.1 DMA MUX request sources
This device includes a DMA request mux that allows up to 63 DMA request signals to be
mapped to any of the 16 DMA channels. Because of the mux there is not a hard
correlation between any of the DMA request sources and a specific DMA channel.
Source Number
0
1
2
3
4
5
6
7
8
9
10
11
Freescale Semiconductor, Inc.
Table 22-1. DMA request sources
Peripheral Assignment
Channel disabled
Reserved Not used
UART0 Receive
UART0 Transmit
UART1 Recieve
UART1 Transmit
flexPWM_WR0
flexPWM_WR1
flexPWM_WR2
flexPWM_WR3
flexPWMA_CP0
flexPWMA_CP1
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KV4x Reference Manual, Rev. 2, 02/2015
Preliminary
Description
—
—
Receive
Transmit
Receive
Transmit
Submodule 0 DMA request to update
PWM buffers
Submodule 1 DMA request to update
PWM buffers
Submodule 2 DMA request to update
PWM buffers
Submodule 3 DMA request to update
PWM buffers
Submodule 0 DMA request for input
capture on any of the Capture FIFO
( OR of 6 capture circuits
X0,X1,A0,A1,B0,B1)
Submodule 1 DMA request for input
capture on any of the Capture FIFO
( OR of 6 capture circuits
X0,X1,A0,A1,B0,B1)
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