Enum lpc845_pac::i2c0::mstctl::MSTDMA_A [−][src]
pub enum MSTDMA_A {
DISABLED,
ENABLED,
}
Expand description
Master DMA enable. Data operations of the I2C can be performed with DMA. Protocol type operations such as Start, address, Stop, and address match must always be done with software, typically via an interrupt. Address acknowledgement must also be done by software except when the I2C is configured to be HSCAPABLE (and address acknowledgement is handled entirely by hardware) or when Automatic Operation is enabled. When a DMA data transfer is complete, MSTDMA must be cleared prior to beginning the next operation, typically a Start or Stop.This bit is read/write.
Value on reset: 0
Variants
0: Disable. No DMA requests are generated for master operation.
1: Enable. A DMA request is generated for I2C master data operations. When this I2C master is generating Acknowledge bits in Master Receiver mode, the acknowledge is generated automatically.