EM78M612

EM78M612 Universal Serial Bus Microcontroller Series EM78M612 Universal Serial Bus Microcontroller V1.1 Specification Revision History Version 1.0 Initial Version Correction for some text in General Description－P2,rom size 12K→2K Correction for Pin Configuration of EM78M612XBP－P5 ADC Converter Channel Selector Table fixed－P16,CH1 Reserved 1.1 Added PDA Register Description－P20,IOC9 Correction for EEPROM Function Description－P24 Changes made to PDA Function Description－P29-32 Revised ADC Converter ready bit for ADC Operation－P17,P34,RAS[7] 2004/04/28 Content Update 2003/03/05 This specification may change without further notice. 2004/4/28 V1.1 1 EM78M612 Universal Serial Bus Microcontroller Series SPECIFICATION 1 General Description The EM78M612 is a series of Universal Serial Bus 8-bit RISC Multi-Time Programming (MTP) microcontrollers. It is specifically designed for USB low speed device application and to support legacy device such as PS/2 mouse. The EM78M612 also support one device address and two endpoints. With no firmware involved, these series of microcontrollers can automatically identify and decode Standard USB Command to EndPoint Zero. The EM78M612 is implemented on a RISC architecture. It has five-level stack and eight interrupt sources. The amount of General Input/Output pins is up to 15. Each device has 112 bytes SRAM and is embedded with 4 bytes of E2PROM. The ROM size of the EM78M612 is 2K. These series of chips have special features tha...