EM78M611E

Universal Serial Bus Series Microcontroller

￿Built-in 8-bit RISC MCU

￿8-level stacks for subroutine nesting and interrupt

￿8-bit real time clock/counter (TCC) with overflow interrupt

￿Six available interrupts

￿Built-in RC oscillator free running for Watchdog Timer and Dual clock mode

￿Two independent programmable prescalers for WDT and TCC

￿Two power saving methods:

1.Power-down mode (Sleep mode)

2.Dual clock mode

￿Two clocks per instruction cycle

￿Multi-time programmable

￿I/O Ports

￿Up to 11 LED sink pins

￿Each GPIO pin of Ports 5, 6, 8, P90~P93, P95 and P96; has an internal programmable pull-high resistor (25KΩ)

￿Each GPIO pin of Port 6, P74 ~ P77 and Port 9 can wake up the MCU from sleep mode by input state change

￿Internal Memory

￿Built-in 6K13 bits Program ROM

￿Built-in 144 bytes general purpose registers (SRAM)

￿Built-in USB Application FIFOs

￿Built-in 4 bytes EEPROM with a minimum of 4K write/erase cycles

￿Operation Frequency

￿Normal Mode: MCU runs with an external oscillator frequency of 6 MHz or 12 MHz

￿Dual Clock Mode: MCU runs at a frequency of 256kHz (or 32 kHz, 4kHz, 500Hz), emitted by the internal oscillator with the external ceramic resonator turned off to save power.

￿Built-in Pattern Detect Application for serial signal transmission

￿Built-in Pulse Width Modulation (PWM)

￿Up to 2 channels PWM function on P92 (PWM1) and P93 (PWM2)

￿Up to 8-bit resolution PWM output

￿Up to 8 selections of duty cycles

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Product Specification (V1.1) 11.22.2006

(This specification is subject to change without further notice)

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IBM EM78M611E manual Product Specification V1.1