MT3333AV 查看數據表（PDF） - MediaTek Inc

零件编号

产品描述 (功能)

生产厂家

MT3333AV

High-performance Single-chip Multi-gnss Solution

MediaTek Inc 

MT3333 All-in-One GNSS

Datasheet

Figure 5-2: Power on/off reset behavior

5.11. Serial interfaces

MT3333 supports three serial interfaces: UART, SPI and I2C. The active serial interface type is determined by strap

pins. Note that firmware with SPI and I2C support is available on request, the standard chipset firmware supports

UART only.

5.11.1. Universal Asynchronous Receiver/Transmitter (UART)

MT3333 has three full duplex serial ports that can be used for serial data communication. UART communication

functions provided include: UART data transmission/receive and NMEA sentences input/output. In general, UART0

is used for NMEA output and PMTK command input, while UART1 is RTCM input. You can adjust the UART2 port as

desired. UART provides signal or message outputs.

5.11.2. Serial Peripheral Interface (SPI)

Note: SPI support is available in firmware on request.

The SPI port manages the communication between digital baseband (BB) and external devices. MT3333 supports

both master and slave modes. In the master mode only 4 bytes of register can be transferred. In slave mode 4-

byte-register or SRAM FIFO options are available. In the SRAM FIFO mode, the size of the data blocks transmitted

and received is 256 bytes. The clock phase and clock polarity are selectable. MT3333 supports a manual or

automatic indicator for data transfer in the slave mode.

© 2016 - 2017 MediaTek Inc.

Page 9 of 22

This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).

Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.

Share Link: