STA8090FG datasheet(23/41 Pages) STMICROELECTRONICS

Part #	STA8090FG

Description	Fully integrated GPS/Galileo/GLONASS/BeiDou/QZSS receiver with embedded RF and in-package Flash

PDF	41 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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23 / 41 page

DS10719 Rev 6

23/41

STA8090FG

General description

alarm time is reached. It has a clock trimming feature to compensate for the accuracy of the

32.768 kHz crystal and a secured time update.

RTC features



47-bit counter clocked by 32.768 kHz clock



32-bit for the integer part (seconds) and 15-bit for the fractional part



The integer part and the fractional part are readable independently



The counter, once enabled, can be stopped



Integer part load register (32-bit)



Fractional part load register (15-bit)



Load bit to transfer the content of the entire load register (integer+fractional part) to the

47-bit counter. Once set by the MCU this bits is cleared by the hardware to signal to the

MCU that the RTC has been updated.

3.4.11

MSP

The STA8090FG provides one MSP transmitter block.



Element (data) size from 8 to 32 bits, LSB or MSB first



Programmable frequency shift clock for data transfer



Direct interface to:

–

Industry-standard codecs and serially connected A/D and D/A devices

–

IIS compliant devices

–

SPI compliant devices



Transmit first-in, first-out memory buffers (FIFOs), 32 bits wide, 8 locations deep

STA8090FG Datasheet(PDF) 23 Page - STMicroelectronics