DMA-330 是高效能 DMA 控制器,可在 AXI 系統中大幅提升效能及減少功耗。 DMA-330 可高度配置,支援各式各樣的應用及架構,並可編程支援分散集中、記憶體至記憶體、周邊設備至記憶體,以及記憶體至周邊設備的傳輸,此外還支援由重設執行、通道安全性、中斷及周邊設備。 技術手冊 特色與效益 提升系統效能 高效使用...
DMAC包含一个instruction processing block,来process program code,control DMA transfer. program code一般放在一个system memory中,DMA通过AXI接口来访问. DMA内部有一个cache来临时保存instructions,cache的length和depth可配. 该IP DMAC内部可配8个DMA channel,每个channel都支持一个concurrent thread DMA operation. DM...
static int Src[DMA_LENGTH]; static int Dst[DMA_LENGTH]; #pragma data_alignment=4 #else static int Src[DMA_LENGTH] __attribute__ ((aligned (32))); static int Dst[DMA_LENGTH] __attribute__ ((aligned (32))); #endif XDmaPs DmaInstance; #ifndef TESTAPP_GEN XScuGic GicInstance; #endi...
CoreLink DMA-330AMBA DMA Controller DMA-330 Technical Reference Manual r1p0Version: r1p0 (Superseded) Rate this page: About the DMAC The DMAC is an Advanced Microcontroller Bus Architecture (AMBA) compliant peripheral that is developed, tested, and licensed by ARM. The DMAC provides an AXI ...
CoreLink DMA-330CoreLink DMA Controller DMA-330 Technical Reference Manual r1p1Version: r1p1 (Superseded) Debug Command Register The DBGCMD Register characteristics are: Purpose Controls the execution of debug commands in the DMAC as Issuing instructions to the DMAC using an APB interface ...
CoreLink DMA-330AMBA DMA Controller DMA-330 Technical Reference Manual r1p0Version: r1p0 (Superseded) Rate this page: Chapter 1. Introduction This chapter introduces the DMA Controller (DMAC). It contains the following sections: About the DMAC Compliance Features Interfaces Configurable ...
AMBA DMA Controller DMA-330 Technical Reference Manual r1p0 preface Introduction Functional Overview Overview DMAC interfaces Operating states Stopped Executing Cache miss Updating PC Waiting for event At barrier Waiting for peripheral Faulting completing Faulting Killing Completing Initializing the DMAC Usin...
Changed product designator from PL330 to DMA-330 Throughout book r1p0 Updated description about how a DMA manager thread can move from the Stopped state to the Executing state Stopped All revisions Updated description about how a thread can move from the Executing state to the: At barrier state...
一、DMA介绍 首先简单介绍下什么是DMAC(Direct Memory Access Controller),DMAC 是一个自适应先进的微控制器总线体系的控制器,它由ARM公司设计并基于PrimeCell技术标准,DMAC提供了一个AXI接口用来执行DMA传输,以及两个APB接口用来控制这个操作,DMAC在安全模式技术下用一个APB接口执行TrustZone技术,其他操作则在非安全模式...
CoreLink DMA-330AMBA DMA Controller DMA-330 Technical Reference Manual r1p0Version: r1p0 (Superseded) Rate this page: Interfaces The DMAC has the following external interfaces: AMBA AXI master interface, for transfer of memory data to or from an AMBA slave AMBA 3 APB slave interface, for ...