Title :
Four-way processor 800 MT/s front side bus with ground referenced voltage source I/O
Author :
Thomas, T.P. ; Young, I.A.
Author_Institution :
Portland Technol. Dev., Intel Corp., Hillsboro, OR, USA
Abstract :
A 40 cm multi-drop bus shared by 5 test chips to emulate 4 processors and a chipset runs error free at 800 MT/s with 130 mV margin using Ground Referenced Voltage Source (GRVS) I/O scheme. For comparison, when the same test chip is programmed to use Gunning Transceiver Logic (GTL), the bus speed is 500 MT/s for the same 130 mV margin under identical conditions.
Keywords :
CMOS digital integrated circuits; driver circuits; system buses; 40 cm; CMOS chip; GTL; chipset; four-way processor bus; front side bus; ground referenced voltage source I/O; gunning transceiver logic; multi-drop bus; Acoustic reflection; Circuit testing; Clocks; Driver circuits; Frequency; Impedance; Logic testing; Microprocessors; Protocols; Voltage;
Conference_Titel :
VLSI Circuits Digest of Technical Papers, 2002. Symposium on
Conference_Location :
Honolulu, HI, USA
Print_ISBN :
0-7803-7310-3
DOI :
10.1109/VLSIC.2002.1015048
