RK2738中文資料瑞芯微數(shù)據(jù)手冊(cè)PDF規(guī)格書(shū)

Features

System Operation

? Dual Core Architecture (ARM9 + DSP) , including hardware accelerator

? Support system boot sequentially from ARM to DSP

? Support address remap function

? For two cores, all modules have unified address space

? Selectable JTAG debug method

? ARM9 debug only (default)

? DSP debug only

? ARM9+DSP dual core debug

? Selectable CPU booting method

? Boot from Nand Flash

? Boot from SPI nor flash

? Boot from UART device

? Boot from eMMc

Memory Organization

? Internal memory space for ARM processor

? Internal 16KB SRAM for ARM9 ICache

? Internal 16KB SRAM for ARM9 DCache

? Internal 2KB SRAM for ARM9 ITCM

? Internal memory space for DSP processor

? Internal 64KB SRAM for DSP Instruction L1 Memory

(Also config as 32KB Memory+32KB ICache by software)

? Internal 64KB SRAM for DSP Data L1 Memory

? Internal 40KB SRAM for DSP Instruction L2 Memory

? Internal 32KB SRAM for DSP Data L2 Memory

? Embedded 8KB ROM for CPU Boot

? Embedded 2KB SRAM for communication between two cores

? Processors

? ARM926EJC

? RISC architecture with 32bit ARM and 16bit Thumb instruction sets

? Include efficient execution of Java byte codes

? Built-in MMU to provide flexible memory management needed by many

mainstream OS

? Harvard cached architecture , separate ICache and DCache

? Separate instruction and data TCM interfaces

? Separate instruction and data AHB bus interface