Bosch Sensortec BHA260AB Shuttle Board GENERAL DESCRIPTION Bosch Sensortecs BHA260AB shuttle board is a PCB with the BHA260AB, a smart sensor sub with integrated acceleration sensor, mounted on it. In addition to the BHA260AB, the board includes on M2 master interface (configured as SPI): a BMG250 Gyroscope on M3 master interface (configured as I2C): a BME280 environmental sensor (p, rH, T) a BMM150 magnetometer an AK09915 magnetometer BHA260AB shuttle board mounted on level- connected to the BHA260AB. Additional sensors can be shifter board (product photo may differ from real connected to the M3 I2C bus, using connector J6. product appearance). The shuttle board allows easy access to pins of the smart sensor hub via a simple socket. The shuttle board comes pre-mounted Do not connect the shuttle board directly to the on a level-shifter board, which allows the PCB stack to be directly application board, as this can lead to severe plugged into Bosch Sensortecs advanced development tool damage of the shuttle board and its components. (application board). Connection of shuttle board, level shifter board Block diagram of BHA260AB shuttle board and application board Bosch Sensortec BHA260AB 2 6 Designator Function Description J1 Shuttle board Pin number Pin name Description connector 1 VDD Power supply (1.8V only ) 2 VDDIO Power supply (1.8V only ) 3,23 GND Ground 4,15 MISO Master-input-slave-output data pin of SPI bus (connected to BHA260AB host interface) 5,17 MOSI Master-output-slave-input data pin of SPI bus, or SDA of I2C bus (connected to BHA260AB host interface) 6,18 SCK Clock pin of both SPI and I2C bus (connected to BHA260AB host interface) 7 CS Chip selection pin of SPI bus (connected to BHA260AB host interface) 21 INT Host interrupt pin (connected to BHA260AB host interrupt) 13,12,11, COD x Device code for application board, COD of BHA260AB 10,28,27, shuttle board is 100111001 . 26,25,24 8,9,14, NC Not used. 15,16,19, 20,22, J2, J3, J8 Pull-up resistors J2: BHA260AB HSCX pad(SCK) for host interface J3: BHA260AB HSDX pad(SDA) running in I2C J8: BHA260AB HCSB pad(SPI Chip select) mode J4 2-wire JTAG Pin number Pin name Description connector 1 TMS TMS pin of 2-wire JTAG 2,3 NC Not used 4 CLK CLK pin of 2-wire JTAG 5 GND Ground on board 6 VDDIO 1.8V power supply on board J5 SPI/I2C mode & Setting Mode I2C address IC2 address Open SPI - selection Left (towards R12) I2C 0x28 Right (towards R10) I2C 0x29 J6 M3 I2C interface Pin number Pin name Description for bus M3 SDA SDA pin of M3, with a 4.7kohm pull-up to 1.8V extensions 1 VDDIO 2 M3 SCL SCL pin of M3, with a 4.7kohm pull-up to 1.8V VDDIO 3 GND Ground pin. J7, J9, J10 Access points to J7: BHA260AB VDD pad BHA260AB J9: BHA260AB VDDIO pad supply (e.g. for J10: BHA260AB GND (GND+GNDIO) line power measurement) Doc.-Number: BST-DHW-FL028-02 / Version 2.0 241120 Data & Specification are preliminary and subject to change without notice Bosch Sensortec GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. BOSCH and the symbol are registered trademarks of Robert Bosch GmbH, Germany.