EP 1417579 A2 20040512 - INTERRUPT-CONTROLLER
Title (en)
INTERRUPT-CONTROLLER
Title (de)
UNTERBRECHER-STEUEREINRICHTUNG
Title (fr)
DISPOSITIF DE COMMANDE D'INTERRUPTION
Publication
Application
Priority
- DE 10062995 A 20001216
- EP 0114792 W 20011214
Abstract (en)
[origin: WO0248880A2] The invention relates to an interrupt controller for controlling the accessing of a processor (100) by interrupt sources (11, 12, 13, 14) and for controlling the associated branching of the signal processing programme (Rx) that is being executed with a current priority (Px) in the processor. The input side of the interrupt controller contains a predetermined number of interrupt interfaces (21, 22, 23, 24) for connecting the interrupt sources and a priority value (Pi) and an address (Adi) is allocated to each interrupt interface (21, 22, 23, 24). A selection device (30) determines the interrupt interfaces that have the highest priority value (Pmax) amongst the activated interrupt interfaces. The multiplexing of the individual interrupt interfaces (21, 22, 23, 24) to the processor (100) as an interrupt request (IR) is dependent on a priority comparator (40) and a branching logic (60), which control the triggering of a context backup (I) in the processor (100), based on the determined priority value (Pmax) and the current priority value (Px). If possible, the branching logic only determines the associated branching addresses (Vi) at the end of the context backup (I) that is being executed, in order to take into consideration the interrupt requests that are received during said context backup (I).
IPC 1-7
IPC 8 full level
G06F 9/48 (2006.01)
CPC (source: EP US)
G06F 9/4812 (2013.01 - EP US)
Citation (search report)
See references of WO 0248880A2
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 0248880 A2 20020620; WO 0248880 A3 20040226; DE 10062995 A1 20020711; EP 1417579 A2 20040512; JP 2004516547 A 20040603; US 2003172215 A1 20030911
DOCDB simple family (application)
EP 0114792 W 20011214; DE 10062995 A 20001216; EP 01990568 A 20011214; JP 2002550524 A 20011214; US 20412203 A 20030312