ST STM32G473 User Manual

RM0440 Rev 4 425/2126
RM0440 DMA request multiplexer (DMAMUX)
440
13.2 DMAMUX main features
• Up to 16-channel programmable DMA request line multiplexer output
• 4-channel DMA request generator
• 21 trigger inputs to DMA request generator
• 21 synchronization inputs
• Per DMA request generator channel:
– DMA request trigger input selector
– DMA request counter
– Event overrun flag for selected DMA request trigger input
• Per DMA request line multiplexer channel output:
– 115 input DMA request lines from peripherals
– One DMA request line output
– Synchronization input selector
– DMA request counter
– Event overrun flag for selected synchronization input
– One event output, for DMA request chaining
13.3 DMAMUX implementation
13.3.1 DMAMUX instantiation
DMAMUX is instantiated with the hardware configuration parameters listed in the following
table.
Table 90. DMAMUX instantiation
Feature DMAMUX
Number of DMAMUX output request channels
Category 2 devices
(1)
Category 3 devices
(1)
Category 4 devices
(1)
12
16
16
Number of DMAMUX request generator channels 4
Number of DMAMUX request trigger inputs 21
Number of DMAMUX synchronization inputs 21
Number of DMAMUX peripheral request inputs 115
1. See Table 1: STM32G4 Series memory density

ST STM32G473 Specifications

General

Brand	ST
Model	STM32G473
Category	Microcontrollers
Language	English