1996-04-10
1999-02-02
Shah, Alpesh M.
395280, G06F 1576
Patent
active
058677267
ABSTRACT:
A built-in memory is divided into the following two types: first memories 5 and 7 and second memories 4 and 6, and made accessible in parallel by third buses XAB and XDB and second buses YAB and YDB respectively. Thereby, a CPU core 2 can simultaneously transfer two data values from the built-in memory to a DSP engine 3. Moreover, the third buses XAB and XDB and the second buses YAB and YDB are also separate from first buses IAB and IDB to be externally interfaced and the CPU core 2 can access an external memory in parallel with the access to the second memories 4 and 6 and the first memories 5 and 7.
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Akao Yasushi
Baba Shiro
Baji Toru
Hasegawa Hironobu
Kiuchi Atsushi
Hitachi , Ltd.
Shah Alpesh M.
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