KW41Z datasheet(13/91 Pages) NXP

13 / 91 page

• Up to 2 interrupt timers for triggering ADC conversions

• 32-bit counter resolution

• Clocked by bus clock frequency

Real-Time Clock (RTC)

• 32-bit seconds counter with 32-bit alarm

• Can be invalidated on detection of tamper detect

• 16-bit prescaler with compensation

• Register write protection

• Hard Lock requires MCU POR to enable write access

• Soft lock requires POR or software reset to enable write/read access

• Capable of waking up the system from low power modes

Inter-Integrated Circuit (I2C)

• Two channels

• Compatible with I2C bus standard and SMBus Specification Version 2 features

• Up to 400 kHz operation

• Multi-master operation

• Software programmable for one of 64 different serial clock frequencies

• Programmable slave address and glitch input filter

• Interrupt driven byte-by-byte data transfer

• Arbitration lost interrupt with automatic mode switching from master to slave

• Calling address identification interrupt

• Bus busy detection broadcast and 10-bit address extension

• Address matching causes wake-up when processor is in low power mode

LPUART

• One channel

• Full-duplex operation

• Standard mark/space non-return-to-zero (NRZ) format

• 13-bit baud rate selection with fractional divide of 32

• Programmable 8-bit or 9-bit data format

• Programmable 1 or 2 stop bits

• Separately enabled transmitter and receiver

• Programmable transmitter output polarity

• Programmable receive input polarity

• 13-bit break character option

• 11-bit break character detection option

• Two receiver wakeup methods:

Feature Descriptions

MKW41Z/31Z/21Z Data Sheet, Rev. 4, 03/2018

NXP Semiconductors

KW41Z Datasheet(PDF) 13 Page - NXP Semiconductors