BISHENG: A 49.38PPM Flexible Multi-Function Printer SoC in 28nm CMOS

Innovative AI functions and imaging algorithms are important for multi-function printers (MFP) to provide good user experience. However, prior printer system on chips (SoC) using hardwired hardware or customized processors have limited flexibility and programmability. This paper proposes a flexible MFP SoC called BISHENG, which uses customized RISC-V processors and a hybrid interconnect with sequential pipeline and partial crossbar. The chip was fabricated in 28 nm CMOS. Experiment result shows that it can achieves 49.38 pages per minute (PPM) in prototype printer with a typical power 2.55 W. Keywords-System on Chip, Multi-Function Printer, Document Image Processing, On-Chip Network