Boots – shoes – and leggings
Patent
1993-01-22
1994-08-16
Chun, Debra A.
Boots, shoes, and leggings
364DIG1, 3642328, 3642391, 3642402, 3642474, 3642394, G06F 1338
Patent
active
053394488
ABSTRACT:
A microprocessor according to the present invention comprises a sub-read bus, to which output terminals of registers of a register file of the microprocessor are coupled. The sub-read bus is in turn coupled to a main read bus of the microprocessor through a bus output circuit. Upon occurrence of a read access to any of the registers, the bus output circuit couples the sub-read bus with the main read bus, whereby data read out from the registers to the sub-read bus are transmitted to the main read bus, and under no existence of the read access, the bus output circuit interrupts the data transmission from the sub-read bus to the main read bus. With this, a load capacitance of the read bus is reduced. As a result, a time for making access to the read bus is much improved.
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Iwamura Masahiro
Nakano Tetsuo
Nojiri Tatsuo
Tada Hisashi
Tanaka Shigeya
Chun Debra A.
Hitachi , Ltd.
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