X3与J3差异描述¶
旭日 Sunrise3（简称 X3）和征程 Journey3（简称 J3）属于同代芯片，一些IP以及SOC架构上保持着同构设计，但是分别面向人工智能物联网领域和自动驾驶两个不同领域。
由于J3自动驾驶场景的特殊性，它满足了 AEC-Q100 Grade 2 车规级要求，在一些芯片规格上也有一些差异，详细内容如下:
| 功能模块 | J3规格 | X3M规格 | X3E规格 |
|---|---|---|---|
| Package | TSMC 16nm FFC； FCBGA483, 0.65mm； 15mm x 15mm | ||
| Operating temperature | -40 ~ 105℃ | -25 ~ 85℃ | -25 ~ 85℃ |
| Typical Power | 2 ~ 3 W | 2 ~ 3 W | 2W |
| CPU | ARM® Cortex®-A53, 4xCore | ARM® Cortex®-A53, 4xCore | ARM® Cortex®-A53, 2xCore |
| 32KB L1, 512KB L2； FPU, NEON | |||
| Typical operation frequency:1.2GHz | |||
| BPU | (Bernoulli Arch) 2×Core | ||
| 5 TOPS | 5 TOPS | 3 TOPS | |
| Typical operation frequency: 950MHz | Typical operation frequency: 1GHz | Typical operation frequency: 0.6GHz | |
| DDR | x32 off-chip DDR4/LPDDR4/LPDDR4X DRAMs | ||
| Up to 4 GB capacit | |||
| Maximum speed up to LPDDR4/LPDDR4X-3200 and DDR4-3200 |
Maximum speed up to LPDDR4/LPDDR4X-3200 and DDR4-3200 |
Maximum speed up to LPDDR4/LPDDR4X-2666 and DDR4-2666 |
|
| ISP | RAW to YUV conversion;
HDR; Support 3A histogram statistics; Support DPC、3DNR、LDC、GDC; ISP tuning tool on the PC |
||
| Video Codecs | H.265(HEVC) Encoding and Decoding: Main profile @L5.1; 3840x2160@60fps |
H.265(HEVC) Encoding and Decoding: Main profile @L5.1; 3840x2160@60fps |
H.265(HEVC) Encoding and Decoding: Main profile @L5.1; 2688x1944@60fps |
| H.264 Encoding and Decoding: Baseline/Main/High profiles, L5.1 3840x2160@60fps |
H.264 Encoding and Decoding: Baseline/Main/High profiles, L5.1 3840x2160@60fps |
H.264 Encoding and Decoding： Baseline/Main/High profiles, L5.1 2688x1944@60fps |
|
| JPEG Encoding and Decoding, 16Mpixels | |||
| CBR, VBR, AVBR, FixQp and QpMap bitrate control | |||
| Video/Image Processing Units | Image Processing Unit(IPU): cropping and scaling; OSD | ||
| Pyramid: Input images from IPU(online mode) or from DDR(offline mode); Input image size up to 8Mpixels; Generates multi-layer pyramid images with configurable roi and scaling factors |
|||
| Video Input Interface | MIPI CSI video input: 3 MIPI CSI Rx Ports; 2Gbps per data lane; Up to 4096 x 2160 pixels @30fps |
MIPI CSI video input: 3 MIPI CSI Rx Ports; 2Gbps per data lane; Up to 4096 x 2160 pixels @30fps |
MIPI CSI video input: 3 MIPI CSI Rx Ports; 2Gbps per data lane; Up to 2688 x 1944 pixels @30fps |
| DVP: 12-bit data bus interface; Up to 1080P@30fps;1.8V/3.3V input voltages signaling | |||
| Support video in-to-out bypass | |||
| Support multi-camera video inputs through 3 MIPI CSI RX ports | |||
| Video Output Interface | support MIPI CSI TX video output
support MIPI DSI TX video output support parallel RGB video display output support BT1120 video output support BT656 video output support 1 User Interface(UI) layer alpha blending |
||
| Host Interfaces | support 1 User Interface(UI) layer alpha blending
BIF-SPI, 66MHz BIF-SD, 192MB/s USB 3.0 |
||
| Network Interface | One Gigabit Ethernet Interface | ||
| Power Management | Temperature monitor; DVFS ; Deep sleep mode | ||
| Peripheral Interfaces | USB 3.0；4x UART；3x SPI； 2x I2S ；6x I2C； 9x PWM； 1x QSPI； 3x SDIO； RTC/Timer； Watchdog | ||