EM78M611E
Universal Serial Bus Series Microcontroller
2
••••
Product Specification (V1.1) 11.22.2006
(This specification is subject to change without further notice)
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 (25K
Ω
)
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 6K
×
13 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
