Dma Transfer During Sleep - Fujitsu FR60 Hardware Manual

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DMA Transfer during Sleep

The DMAC can also operate in sleep mode.

This section describes DMA transfer in sleep mode.

■ Notes on DMA Transfer in Sleep Mode

If you anticipate operations during sleep mode, note the following:

1. Since the CPU is stopped, DMAC registers cannot be rewritten. Make settings before sleep mode is

2. The sleep mode is released by an interrupt. Thus, if a peripheral interrupt is selected as the DMAC start

source, interrupts must be disabled by the interrupt controller.

Similarly, if you do not want to release sleep mode with a DMAC end interrupt, disable DMAC end

Mb91350a series