Key Specifications Processor Core ARM926@540 MHz, 32 KB I-cache, 32 KB D-cache Video Encoding H.264 main/high profile L4.0 H.264 baseline encoding MJPEG/JPEG baseline encoding Video Encoding Performance A maximum of 2-megapixel resolution for H.264 encoding Real-time H.264 & JPEG encoding of multiple streams: 720p@30 fps+VGA@30 fps+QVGA@30 fps+720p@1 fps JPEG snapshot 2 megapixels@5 fps JPEG snapshot CBR or VBR with the output bit rate ranging from 2 kbit/s to 100 Mbit/s Encoding frame rate ranging from 1/16 fps to 30 fps Encoding of eight ROIs OSD overlaying of eight regions before encoding Intelligent Video Analysis Integrated IVE, supporting various intelligent analysis applications such as motion detection, perimeter defense, and video diagnosis Video and Graphics Processing Video pre-processing, including 3D denoising, image enhancement, and edge enhancement Anti-flicker for output videos and graphics 1/15x to 16x video scaling 1/2x to 2x graphics scaling OSD overlaying of eight regions before encoding Hardware graphics overlaying for videos at the video layer and graphics layer 1 during post-processing ISP 2x2 Pattern RGB-IR sensor Adjustable 3A (AE, AF, and AWB) functions Highlight compensation, backlight compensation, gamma correction, and color enhancement Defect pixel correction, denoising, and digital image stabilization Anti-fog Lens distortion correction Picture rotation by 90° or 270° Mirroring and flipping Build-in WDR and tone mapping ISP tuning tools for the PC Audio Encoding/Decoding Voice encoding/decoding complying with multiple protocols by using software G.711, ADPCM, and G.726 protocols supported  Echo cancellation, noise suppression, and automatic gain Security Engine AES, DES, 3DES, and RSA encryption/decryption algorithms implemented by hardware Hash digest tamper proofing implemented by hardware Integrated 512-bit OTP storage space and hardware random number generator Video Interfaces VI interfaces − 8-, 10-, 12-, or 14-bit RGB Bayer/RGB-IR inputs, maximum clock frequency of 100 MHz −BT.601, BT.656, and BT.1120 VI interfaces −4-Lane MIPI/HiSPI/LVDS VI interfaces −Compatibility with mainstream HD CMOS sensors provided by Sony, Aptina, OmniVision, and Panasonic −Various sensor levels supported −Programmable sensor clock output −Maximum input resolution of 2 (1920*1080) megapixels VO interfaces − One BT.656 VO interface supporting 8-bit serial LCD outputs Audio Interfaces Integrated audio CODEC that supports 16-bit audio inputs and outputs Mono-channel differential microphone inputs for reducing the background noises I2S input Peripheral Interfaces POR One integrated high-precision RTC One 4-channel SAR ADC Three UART interfaces IR interfaces, I2C interfaces, SPI master interfaces, and GPIO interfaces Four PWM interfaces Two SDIO interfaces, one of which supports SD 3.0 One USB 2.0 interface that supports the host/device mode RMII in 10/100 Mbit/s full-duplex or half-duplex mode, TSO network acceleration, and PHY clock output External Memory Interfaces DDR2 SDRAM interface −Embedded 512 Mbits, 16-bit DDR2 SDRAM(200 @32MB V@ 64MB) −Maximum frequency of 360 MHz SPI NOR flash interface −1-, 2-, or 4-bit SPI NOR flash interface SPI NAND flash interface −Maximum capacity of 4 Gbits eMMC 5.0 interface −Maximum capacity of 64 GB Booting from the SPI NOR flash, SPI NAND flash, or eMMC