PURPOSE:To eliminate the need of extending a different bus between other modules by constituting the system so that in the case a microprocessor reads out data from a memory, a bus can be allocated to other module after sending out an address to the bus. CONSTITUTION:A system bus controller...
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PURPOSE:To provide the one chip microprocessor and the most efficient bus system using it which can be easily connected with the external peripheral devices. CONSTITUTION:A one chip microprocessor 1 composed of an instruction execution unit 3, a DMA controller 4, and a memory management unit 2 ...
CONSTITUTION:A microprocessor 20 is provided with plural pairs of data bus control lines 22 to 26, and the input/output instruction to simultaneously or selectively operate these control lines is provided. Consequently, the input/output operation is selectively performed in memories 27 to 30 ...
Shared memory multi-microprocessor computer system A multiprocessor microcomputer system having two or more substantially independent processors each of which has its own bus-type interconnection structure, and a shared memory accessible by any of the processors without interferring with... CL Devlin,CW...
In a system with two microprocessors with one bus system each and a common read/write memory, the common read/write memory can be connected to the bus systems of the microprocessors via one switchable bus driver each. A handshake output (HMS) of one of the microprocessors, which is operated...
of a given circuit. Using PAL can save space, a very important factor in the miniaturization process. Examples of PAL applications include the BCD counter, the LS 138 emulator, and a priority interrupt encoder. The book also explains the operation and function of a microprocessor, the bus-...
摘要: PURPOSE: To improve the total performance of system by temporarily opening a bus in the case of accessing a low-access-speed memory.收藏 引用 批量引用 报错 分享 文库来源 求助全文 SYSTEM FOR ACCESSING MEMORY OF MICROPROCESSOR 优质文献 ...
CONSTITUTION:The microprocessor system is provided with the data storing memory 1 having structure attachable/detechable to/from a firmware device and constituted so as to store data written in the same address space as a system memory 4 in a connected state to a system bus 6 and the control...
A computer system has a processor bus under control of the microprocessor itself, and this bus communicates with main memory, providing high-performance access for most cache fill operations. In addition, the system includes one or more expansion buses, preferably of the PCI type in the example ...