A program register is coupled between a data bus N bits wide and an address but N bits wide for storing the address of the current byte of a multi-byte instruction currently being executed. A counter is also coupled between the address bus and the data bus and is additionally coupled to ...
A memory map is the addressing plan for the address bus bits. 存贮器布局就是地址总线各位的寻址平面图。 The microprocessor uses the address bus to locate data stored in memory. 微处理机使用地址总线设定在存贮器中存贮的数据的地址。 权威例句 ...
Applying this same principle to your 32kB EEPROM, which has 15 address pins A0 to A14 connected to the corresponding pins of the microprocessor's address bus, with A15 being completely unconnected and ignored, you can see that the entire EEPROM contents will be duplicated (from the processor's...
b) transferring the read coprocessor instructions to a first bus coupled to the microprocessor and to the plurality of coprocessors; c) maintaining in a memory a predetermined designation data which designates a one of the plurality of coprocessors, the memory being in an area which is written ...
PURPOSE: To easily test the stack fault of a bus by providing plural common input/output(CIO) bus driver which is connected between a microprocessor and the respective buses to be a test object. CONSTITUTION: A counter 14 which is reset by a reset signal 12 inputted from a microprocessor is...
A first selecting circuit 4 selects whether the output of an address bus 10 to input the address outputted from the data buffer 5 for RAM address is supplied to the RAM 3 for address decode or not, the decoded output from an existent address decoder circuit 2 is selected when starting ...
Extension of the Working-Zone-Encoding Method to Reduce the Energy on the Microprocessor Data Bus SPEC95 streams of references to memory along with the corresponding data values in a system with multiplexed address and multiplexed instruction/data buses. ... TA Lang,E Musoll,J Cortadella 被引量...
CPU: Central Processing Unit I/O: Input /Output Bus: Address bus & Data bus Memory: RAM & ROM Timer Interrupt Serial Port Parallel Port. I/O Interface. INTRO TO I/O INTERFACE I/O instructions (IN, INS, OUT, and OUTS) are explained. Also ...
The integrated circuit has an address decoding module (28) for generating a unique combination of control signals in response to a respective address placed on the bus by the microprocessor (13). Memory units (NVM1-3) are responsive to a chip select control signal to enable writing to the ...
An address space expansion facility is provided for use with a system based around a microprocessor (1), e.g. Intel 8086 family, that has a specific number of address outputs (2). The processor also has a data bus (3) coupled to a register (4). An adder unit (5) combines the 12...