Patent · US Expired

Monitoring device for monitoring internal signals during initialization of an electronic circuit

US7340313B2 · kind B2 · utility

0Cited by

7References

6Claims

0Family size

Assignee

Infineon Technologies AG · DE

Inventors

Manfred Moser · Dachau, DE
Erwin Thalmann · Birkenfeld, DE
Martin Versen · Hersbruck, DE

Key dates

Filing date	Mar 16, 2005
Grant date	Mar 4, 2008
Priority date	—
Expiry date	May 4, 2026

Classification

Technology area (CPC G)Physics
CPC primaryG11C2029/5602
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

The invention provides a device for monitoring electronic circuit units during an initialization phase. The device has at least one internal data line (103) for forwarding internal data (105) in the electronic circuit unit (101) and at least one data connection line (104) for outputting the internal data from the electronic circuit unit (101) and for inputting external data (106) into the electronic circuit unit (101). A changeover unit (102), which is intended to change over the data connection line (104) either to the internal data line (103) or to internal signal lines (113), and a combinational logic unit (111) for combining an initialization signal (109), which is provided by the electronic circuit unit (101) to be monitored, with an external changeover signal (108), which is supplied via a changeover signal input (107) of the electronic circuit unit (101) to be monitored, are also provided. An activation signal (114), which is output by the changeover unit (102), is used to change over the data connection line to the internal signal lines (113) when the initialization signal (109) indicates an initialization mode of the electronic circuit unit (101).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.