Abstract
=========
SG2042 is server grade chip with high performance, low power consumption and
high data throughput

Key features
-------------
- 64 RISC-V cpu cores which implements IMAFDC
- 4 cores per cluster, 16 clusters on chip
- RISC-V vector 0.7
- 2.0GHz CPU frequency
- 64KiB L1 I-Cache and 64KiB L1 D-Cache per core
- 1MiB unified L2 cache per cluster
- 64MiB system level L3 cache
- 512G ops/s for 8bit integer and 256G ops/s for 16bit floating point
- TDP 120W
- 4 DRAM controller, support DDR4 UDIMM/SODIMM/RDIMM up to 3200MT/s with ECC byte
- Max 256GiB DRAM with single chip, 256GiB with dual chips system
- 2 PCIe controller, support PCIe gen4 up to 16GT/s/lan. 32 lans in total.
- 1 1Gbps ethernet RGMII
- 2 eMMC/SDIO, support eMMC 5.1 or SDIO 3.0. 4bit data width
- 2 SPI flash interface
- 1 LPC
- 4 UART
- 4 I2C, support 100K/400K/1M clock frequency
- 2 general SPI controller
- 4 PWM generator for fan control
- 4 Fan speed counter
- 32 GPIO pins
- FCBGA, ball pitch 1mm, package size 57mm x 57mm