公开(公告)号：JPH08263984A

公开(公告)日：1996-10-11

申请号：JP4425096

申请日：1996-02-06

Applicant: XILINX INC

Inventor： FUIRITSUPU EMU FUREIDEIN ,  EDOMONDO WAI CHIYUN ,  CHIYAARUZU AARU ERIKUSON ,  TSUNNRU SHIYUU

IPC: G11C11/41 ,  G11C7/10 ,  G11C7/22 ,  G11C8/00 ,  G11C8/16 ,  H03K19/173 ,  H03K19/177

Abstract: PROBLEM TO BE SOLVED: To eliminate the need for an undesirable latch time due to a delay in a signal path by using one ridge of a clock signal to trigger a latch operation of an address signal and a data signal relating to function generators. SOLUTION: An address decoder 305A applies a signal to a read address terminal of a function generator 301 and a multiplexer 306A. An address decoder 305B applies a signal to a read address terminal of a function generator 302 and the multiplexer 306A. The multiplexer 306A applies its output signal to a D input terminal of a latch 304A that applies its output to a write address terminal of the function generator 301 in a through-state. The latch 304A is made up of pass transistors(TRs), that is, which stores tentatively the signal to a gate capacitance of an inverter 312. The latch 304A has lots of modifications.

公开(公告)号：JPH088758A

公开(公告)日：1996-01-12

申请号：JP2437992

申请日：1992-01-16

Applicant: XILINX INC

Inventor： CHIYAARUZU AARU ERIKUSON ,  FUIRITSUPU EMU FUREIDEIN

IPC: G06F11/10 ,  H03M13/00 ,  H03M13/09 ,  H04L1/00

Abstract: PURPOSE: To detect an error with high reliability with a few inspection bits by dividing a data stream into frames, adding the sub-set of error check words to the end of each frame, and forming a transmission frame. CONSTITUTION: A transmission block is generated at a transmission position by dividing the data stream of one transmission session into data frames, generating and updating check words being the function of the bits of the whole data stream, and adding the sub-set of the check words to the end of each data frame. The data frame is divided into N frames 1 to n and sub-sets CW 1-CWn of the check words are inserted into the end of each home. Then, the sub-set CWn of the check words longer than the other subsets is added to the end of the final frame (n). A pattern for periodically inserting the sub-sets of the check words into the data stream can be selected in various ways as long as the same pattern is used at the both edges of transmission.