嵌入式主板
君正集成电路
•移动设备级的性能xburst cpu双核(1.2ghz/300mhz)
•可穿戴式设备级的超低功耗(0.07mw/mhz)
•内置语音唤醒引擎, 3d gpu, vpu, isp
• pop封装(12 x 12 mm)
芯片框图
芯片规格
cpu
xburst-hp core, 1.2ghz (mips-based).
xburst-lp core, 300mhz (mips-based).
32kb l1 i-cache and 32kb l1 d-cache for each core.
512kb l2 unified cache.
gpu
3d gpu with opengl es 2.0/1.1 compliant.
2d gpu with openvg 1.1 compliant.
vpu
video encoder: h.264, vp8, 720p@30fps.
video decoder:h.264, mpeg-4, mpeg-1/2, vc-1, rv9, vp8, 720p@30fps.
isp
wide dynamic range (edr), dual-stream processing.
video and still image stabilization.
image cropping and rescaling.
auto exposure and gain control.
auto white balancing and auto focus control.
edge sharpening and advanced noise reduction.
color correction and management.
auto contrast enhancement and gamma correction.
special digital effects.
memory
ddr2, ddr3, lpddr, lpddr2, up to 667mbps.
16 and 32 bit external ddr data width.
64-bit ecc nand flash support, 512b/2kb/4kb/8kb/16kb page size.
toggle1.0 and onfi2.0 nand.
2 channels high performance pdma, and 30 channels general purpose dma.
display
lcd controller with osd: tft, slcd and mipi-dsi (2-lanes).
embedded e-ink controller.
camera
mipi-csi2 (2-lanes) and dvp interface.
audio
embedded audio codec.
low power dmic controller.
ac97/i2s/spdif interface for external audio codec.
pcm interface, master and slave mode.
voice trigger engine
system wakeup on specific voice command, programmable.
adc
3 channels sar a/d controller, 12-bit resolution.
on-chip peripherals
usb 2.0 otg.
usb host 2.0.
mmc/sd/sdio controller.
full-duplex uart port.
synchronous serial interface.
two-wire smb serial interface.
security
total 4kb otp memory.
highest lever 1 security boot.
package
pop package, bga 260/168-pin on bottom/top, 12 x 12 (mm), 0.65/0.4 mm pitch.
os
android 5.1 and beyond.
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