Method and apparatus for providing pipe fullness information ext

Details Method and apparatus for providing pipe fullness information ext Method and apparatus for providing pipe fullness information ext

1996-04-15

1999-10-12

Eng, David Y.

Electrical computers and digital processing systems: processing

Processing architecture

Microprocessor or multichip or multimodule processor having...

G06F 922

Patent

active

059648635

ABSTRACT:
The present invention relates in general to a data processing system (10), and more particularly to a method and apparatus for providing instruction pipe (106) status information, including fullness information, external to data processing system (10). In one embodiment, an IPIPE2 integrated circuit terminal (15) is used to serially provide a pipe depth value indicating the fullness of the instruction pipe (106). The serial protocol used with the IPIPE2 (15) terminal includes a start bit, a fetch pointer value, and a plurality of idle bits. In one embodiment, IPIPE0 (13) and IPIPE1 (14) integrated circuit terminals may indicate loading and unloading of instruction pipe (106) and may stop toggling when central processing unit (102) is in a loop mode.

REFERENCES:
patent: 3813531 (1974-05-01), King et al.
patent: 3838260 (1974-09-01), Nelson
patent: 4034194 (1977-07-01), Thomas et al.
patent: 4062059 (1977-12-01), Suzuki et al.
patent: 4167779 (1979-09-01), Sullivan et al.
patent: 4268902 (1981-05-01), Berglund et al.
patent: 4346452 (1982-08-01), Groves
patent: 4365311 (1982-12-01), Fukunaga et al.
patent: 4482953 (1984-11-01), Burke
patent: 4521850 (1985-06-01), Wilhite et al.
patent: 4563736 (1986-01-01), Boudreau et al.
patent: 4758949 (1988-07-01), Wada et al.
patent: 5053949 (1991-10-01), Allison et al.
patent: 5084814 (1992-01-01), Vaglica et al.
patent: 5226149 (1993-07-01), Yoshida et al.
patent: 5267350 (1993-11-01), Matsubara et al.
patent: 5329471 (1994-07-01), Swoboda
patent: 5375216 (1994-12-01), Moyer et al.
patent: 5497496 (1996-03-01), Ando
patent: 5499350 (1996-03-01), Uchida et al.
patent: 5634037 (1997-05-01), Sasaki et al.
patent: 5675749 (1997-10-01), Hartivigsen et al.
patent: 5684721 (1997-11-01), Swoboda et al.
Motorola, Inc., "PowerPC 603e RISC Microprocessor User's Manual for Supplement for PowerPC 603 Microprocessor", Chapter 6, pp. 6-2 through 6-5 (1995).
Motorola, PoweRISControl MPC500 Family RCPR Referance Manual, RCPURM/AD, pp. 8-1 through 8-58, 1994.
Motorola, M68HC16 Family CPU16 Central Processor Unit Reference Manual, CPU 16RM/AD Rev 2, pp. 10-1 through 10-40, 1993.
Motorola, M68300 Family CPU32 CentralProcessor Unit Reference Manual, CPU32RM/AD REV 1, pp. 7-3 through 7-34, 1990.

Affiliated with

Also associated with

Rating

Method and apparatus for providing pipe fullness information ext does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for providing pipe fullness information ext, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for providing pipe fullness information ext will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-647965