EM78910 Datasheet | ELAN Microelectronics Corp

Description The EM78910/910A is an 8-bit CID (Call Identification) RISC type microprocessor with low power, high speed CMOS technology. This integrated single chip has on_chip watchdog (WDT), RAM, ROM, programmable real time clock/counter, internal interrupt, power down mode, FSK decoder, Call waiting decoder, SDT (Stuttered dial tone) decoder, DTMF generator, MEI (Multiple Extension Internetworking) function, RTF (Request To Flash) function and tri-state I/O. The EM78910/910A provides a single chip solution to design a CID of calling message_display. II. Feature - Operating voltage range : 2.5V〜5.5V - 16K × 13 Read Only Memory - 1.1K× 8 on chip RAM - Up to 28 bi-directional tri-state I/O ports - 8 level stack for subroutine nesting - 8-bit real time clock/counter (TCC) - Two sets of 8 bit counters can be interrupt sources - Selective signal sources and trigger edges , and with overflow interrupt - Programmable free running on chip watchdog timer - 99.9％ single instruction cycle mands - Four modes (Main clock 3.579MHz or 1.79MHz) Set code option bit0(MCLK) : 0/1 ! 3.579MHz/1.79MHz Mode CPU status Main clock 32.768k Hz clock status Sleep mode Turn off Turn off Turn off Idle mode Turn off Turn off Turn on Green mode Turn on Turn off Turn on Normal mode Turn on Turn on Turn on - Ring on voltage detector - Universal Low battery detector - Input port wake up function - 9 interrupt source , 4 external , 5 internal - Port key scan...