Semiconductor memory device internally provided with logic...

Details Semiconductor memory device internally provided with logic... Semiconductor memory device internally provided with logic...

2005-08-16

2005-08-16

Padmanabhan, Mano (Department: 2188)

Electrical computers and digital processing systems: memory

Storage accessing and control

Specific memory composition

C711S105000, C713S168000, C380S030000, C365S189011, C365S189080, C365S230010, C365S230080

Reexamination Certificate

active

06931482

ABSTRACT:
If a region designated by an address signal is a logic control region, an interface portion transmits/receives data to/from a register instead of a DRAM. A data signal used at that time is a control command for a logic circuit held in the register or input data for a process in the logic circuit. Depending on the content held in the register, the logic circuit performs, for example, an encryption process or a process which takes for a microcomputer a long time to complete such as an image processing. The result of processing is stored in the register and read in a sequence of reading from the DRAM.

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“Modern Cipher Theory”, by Ikeno et al., The Institute of Electronics, Information and Communication Engineers, pp. 1-5, 48-49, 104-109.

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