AMBA Design Kit Technical Reference Manual - ARM Information ...

AHB Components3.11 Example bus masterThe Example Bus Master (EBM), EgMaster32 and EgMaster64, consists of:• an AHB-Lite core, that generates a fixed set of transfers in a continuous way• an AHB-Lite to AHB wrapper, that enables its connection to a standard AHB bus.This provides an example of both AHB-Lite bus master design and the use of thewrapper to interface to an AHB system. You can also use this in the ADK system, inplace of an ARM processor model, to enable rapid simulation of AHB transactions.The block is supplied as both 32-bit and 64-bit versions. Figure 3-17 shows the EBMmodule.Example bus masterExampleAHB-Lite core(EgMasterCore)AHB-Lite (internal signals)iHBURST[2:0]iTRANS[1:0]iPROT[3:0]iHSIZE[2:0]iHWRITEiHMASTLOCKiHADDR[31:0]iHREADYiHRESP[1:0]AHB-Lite to AHBwrapper(Lite2AHB)AHBHCLKHRESETnHREADYHGRANTHRESP[1:0]HADDR[31:0]HWRITEHBURST[2:0]HPROT[3:0]HTRANS[1:0]HSIZE[2:0]HBUSREQHLOCKHWDATAHRDATAFigure 3-17 EBM module components3.11.1 Programmer's modelProgramming details for the EBM are described in the following sections:• Example AHB-Lite core on page 3-45• Configurable options on page 3-46• Endianness on page 3-46.3-44 Copyright © 2003, 2007 ARM Limited. All rights reserved. ARM DDI 0243C