N79E855 datasheet(7/180 Pages) ETC2

7 / 180 page

N79E855/854 Data Sheet

April 23, 2014

Page 7 of 180

Revision A2.5

 Watchdog Timer



Programmable Watchdog Timer



Clock source supported by internal 10 kHz

±50% accuracy RC oscillator

 Serial ports (UART, SPI, I2C)



One set of enhanced full duplex UART port with framing error detection and automatic address recognition.

Software switches two groups of UART pins



One set SPI with master/slave capability; software switches two groups of SPI pins



One set I

2C with master/slave capability

 PWM



4 channels 10-bit PWM outputs with one brake/fault input

 KBI



8-keypad interrupt inputs (KBI) with 8 falling/rising/both-edge detection pins selected by software

 ADC



10-bit A/D converter



Up to 150 Ksps.(sample per second)



8 analog input channels

 Brown-out Detector



2-level (3.8V/2.7V) BOD detector



Supports interrupt and reset options

 POR (Power-on Reset)



Threshold voltage level as 2.0V

 Built-in power management



Idle mode



Power-down mode with optionally enabled WDT functions

 Development Tools



Hardware writer



ICP programmer



ISP update APROM by UART port

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