发明名称 |
VERFAHREN UND VORRICHTUNG ZUR SELBSTPRÜFUNG VON MULTI-PORT-RAMS |
摘要 |
A method for and apparatus of testing a multi-port RAM (random access memory) detect single port faults and inter port shorts in multi-port random access memories. The algorithm performs a conventional single-port test such as MARCH or SMARCH on one port of the memory and performs an inter-port test on all other ports. The algorithm does not impose any extra test time and requires the addition of only a few gates to a conventional single-port BIST controller, independently of the size of the memory. An address to select ports of the multi-port RAM includes a row address signal of a plurality of bits. A specific bit of the row address signal is changed. |
申请公布号 |
DE69825234(D1) |
申请公布日期 |
2004.09.02 |
申请号 |
DE1998625234 |
申请日期 |
1998.02.25 |
申请人 |
NORTEL NETWORKS LTD., ST. LAURENT |
发明人 |
WU, YUEJIAN;GUPTA, SANJAY |
分类号 |
G11C29/34;(IPC1-7):G11C29/00 |
主分类号 |
G11C29/34 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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