NUMICRO-SDK Nuvoton Technology Corporation of America, NUMICRO-SDK Datasheet - Page 65

• Manufacturer Part Number: NUMICRO-SDK
• Description: KIT EVAUATION NUC100/120/130/140
• Manufacturer: Nuvoton Technology Corporation of America
• Series: NuMicro™r
• Type: MCUr

Specifications of NUMICRO-SDK

• Contents: Board, Cable, CD, Nu-Link
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: NUC100, NUC120, NUC130, NUC140

5.18 PDMA Controller (PDMA)
5.18.1 Overview
5.18.2 Features
NuMicro™ NUC100 Medium Density contains a peripheral direct memory access (PDMA)
controller that transfers data to and from memory or transfer data to and from APB devices. The
PDMA has nine channels of DMA (Peripheral-to-Memory or Memory-to-Peripheral or Memory-to-
Memory). For each PDMA channel (PDMA CH0~CH8), there is one word buffer as transfer buffer
between the Peripherals APB devices and Memory.
Software can stop the PDMA operation by disable PDMA [PDMACEN]. The CPU can recognize
the completion of a PDMA operation by software polling or when it receives an internal PDMA
interrupt. The PDMA controller can increase source or destination address or fixed them as well.
Notice: NuMicro™ NUC100 Low Density only has 1 PDMA channel (channel 0).
Up to nine DMA channels. Each channel can support a unidirectional transfer (Low
Density only has 1 PDMA channel)
AMBA AHB master/slave interface compatible, for data transfer and register read/write
Support source and destination address increased mode or fixed mode
Hardware channel priority. DMA channel has the highest priority and channel has the
lowest priority
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NuMicro™ NUC140 Data Sheet
Publication Release Date: Nov 11, 2010
Revision V2.00