RK2818中文資料瑞芯微數(shù)據(jù)手冊(cè)PDF規(guī)格書(shū)

Features

z 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 NOR Flash

Boot from Nand Flash

Boot from SPI nor flash

Boot from UART device

Boot from Host interface

z Memory Organization

Internal memory space for ARM processor

Internal 16KB SRAM for ARM9 ICache

Internal 16KB SRAM for ARM9 DCache

Internal 8KB SRAM for ARM9 ITCM

Internal 16KB SRAM for ARM9 DTCM

Internal memory space for DSP processor

Internal 96KB SRAM for DSP Instruction L1 Memory

(Also config as 32KB Memory+32KB ICache by software, another 32KB

is switched by software)

Internal 64KB SRAM for DSP Data L1 Memory

Internal 48KB SRAM for DSP Instruction L2 Memory

Internal 32KB SRAM for DSP Data L2 Memory

Embedded 8KB ROM for CPU Boot

Embedded 4KB SRAM for communication between two cores

Embedded 48KB SRAM for share among CPU,DSP and LCDC rotator