| 摘要 |
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 ).
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