mitsubishi - Al Kossow's Bitsavers

MITSUBISHI MICROCOMPUTERSPC4000DEBUGGING MACHINEFUNCTIONAL DESCRIPTIONObject programs developed on such devices as the PC9000cross assembler machine are sent to the PC4000 via theserial input/output interface. The serial data transmissionrate can be selected from 1200bps to 9600bps and theinterface is a 20mA ,current loop type. The transmissionformat is Intel-compatible hexadecimal.The data in the program memory is executed by theevaluation CPU on the dedicated board. In addition, thismemory contents can be written into 2716 or 2732EPROM devices or data can be read out of such devices viaa 24-pin D I L socket.The keyboard consists of 12 function keys and 16numerical' keys as well as a single entry key. The LEDdisplay is an 8-digit display of 7-segment LED elementsused to display data for reference while processing isperformed.BLOCK DIAGRAMEPROM27162732PROM WRITERINTERFACEM5L8041A-006PKEYBOARDDISPLAYM5L8279p·sKEYBOARDPROGRAMMEMORYM5T4044PX 10SERIAL I/OINTERFACEM5L8251 Ap·5r----- ------- ----------IIIIDEDICATED BOARDIIIIL------------ i------------I -IUSER SYSTEM7-4• MITSUBISHI"ELECTRIC