Title :
A 16-Mbit/s adapter chip for the IBM token-ring local area network
Author :
Blair, Jack D. ; Correale, Anthony, Jr. ; Cranford, H. Clay ; Dombrowski, Dave A. ; Erdelyi, Charles K. ; Hoffman, Charles R. ; Lamphere, Jeff L. ; Lang, Kirk W. ; Lee, Joseph K. ; Mullen, J. Mark ; Norman, Vernon R. ; Oakland, Steve F.
Author_Institution :
IBM Commun. Syst., Research Triangle Park, NC, USA
fDate :
12/1/1989 12:00:00 AM
Abstract :
The authors describe a 9.02×9.02-mm chip built in 1-μm CMOS with two levels of metal and an additional mask level for fabricating capacitors. It contains both analog and digital circuits and has provisions for self-test. The function includes the transmitter, receiver, protocol handler, an microprocessor, as well as interfaces for RAM/ROM storage, IBM PC bus, IBM PS/2 bus, IBM 3174 bus, and Motorola 68000 bus. The physical design terrains are formed by 24K circuits of standard cell gates, a 10K-circuit equivalent hand-honed custom microprocessor, and an analog macro. The chip operates from a single 5-V supply, and the power consumption is 0.8 W nominal at 16 Mb/s. The chip can also be operated at 4 Mb/s
Keywords :
CMOS integrated circuits; automatic testing; computer interfaces; data communication equipment; digital communication systems; microprocessor chips; token networks; 0.8 W; 1 micron; 16 Mbit/s; 4 Mbit/s; 5 V; CMOS; IBM; IBM 3174 bus; IBM PC bus; IBM PS/2 bus; Motorola 68000 bus; RAM/ROM storage; adapter chip; analog macro; computer communications; custom microprocessor; data communication; digital transmission; interfaces; local area network; microprocessor; power consumption; protocol handler; receiver; self-test; single 5-V supply; standard cell gates; token ring LAN; transmitter; Built-in self-test; Capacitors; Digital circuits; Energy consumption; Local area networks; Microprocessors; Power supplies; Protocols; Read only memory; Transmitters;
Journal_Title :
Solid-State Circuits, IEEE Journal of
