EM78910
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.
Key Features
- 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 commands
