Interconnect Architectures

Concepts

Network On A Chip System Bus

General

AGP CAPI CCIX CCPI DMI (IBM) DMI (Intel) EISA Gen-Z Hydra HT IF ISA LIPINCON Micro Channel Multibus NVLink PCI PCIe PXI Q-Bus QPI S-100 SS-50 Unibus UPI VLB

Peripheral

1-Wire ACCESS.bus Centronics GPIB MIDI RS-232 RS-422 RS-423 UNI/O bus

Storage Devices

NVMe PATA SATA SATAe SSA SCSI

Audio Devices

I²S S/PDIF

Low-voltage-In-Package-INterCONnect (LIPINCON) is a proprietary system interconnect architecture that facilitates data transmission across all linked components.

Overview

LIPINCON is an interconnect architecture designed for chiplet designs with advanced packaging technologies such as InFO and CoWoS. LIPINCON uses a timing compensation mechanism in order to achieve a low-power and small area slave PHY (e.g., memory die or a transceiver die) while excluding the PLL/DLL but retaining good timing margins.

Architecture

The architecture is designed to take advantage of an advanced packaging technology such as CoWoS whereby multiple dies are stacked on a silicon interposer communicating by PHYs over short wires. LIPINCON uses two different types of PHYs: PHYC for an SoC die and PHYM for a memory, transceiver, or similar kind of dies. The clock source in the PHYM relies on one system clock propagated from PHYC. There is no PLL/DLL function blocks built in PHYM because it assumes that the SoC will generally be fabricated on a more advanced node and is therefore capable of handling this more efficiently than a memory/transceiver that may be made on a more mature node.

Bibliography

• TSMC, MS Lin et a., 2013 VLSI Symposium