<p>A microprocessor integrated circuit (50) has a read only memory (ROM) (400) which is X and Y addressible and is word, bit and page oriented. The microprocessor integrated circuit (50) has a main injector bus (602) and a ground return bus (604) with a branch ground bus (608) connected to the ground return bus (604) through a ground balancing resistor (610) in a data path. The circuit (50) has a register file (82) with registers (622) connected to a local bus (604). The local busses (604) are connected to a main bus (602) through a multiplexer (605). The microprocessor integrated circuit (50) includes a D-type flip flop circuit (700) with asynchronous clear and preset. A latch dual port random access memory (RAM) circuit (900) is employed in the register file (82) of the microprocessor integrated circuit (50).</p>
申请公布号
EP0138651(A2)
申请公布日期
1985.04.24
申请号
EP19840401772
申请日期
1984.09.07
申请人
FAIRCHILD CAMERA & INSTRUMENT CORPORATION
发明人
EL-DIWANY, MONIR;HUI, EDWARD;PANG, RICHARD;HINGARH, HEMRAJ K.