Bosch MAN-REG-X-08 Especificaciones descargar pdf (Pagina 46)

Data sheet

BMA220

Page 46

BST-BMA220-DS003-08 | Revision 1.15 | August 2011 Bosch Sensortec

third parties. BOSCH and the symbol are registered trademarks of Robert Bosch GmbH, Germany.

Note: Specifications within this document are subject to change without notice.

Start R/W ACK ACK ACK

Stop

0001011 0 0011100X 11010101

S000

Slave Adress Register address (1Ch) Register data (D5h)

I²C write command

I²C write command only supports one byte writing. The protocol begins with start condition

generated by master, followed by 7bits slave address and a write bit (R/W = 0). The slave sends

an acknowledge bit (ACK = 0) and releases the bus. Then master sends the one byte register

address (only the first 7bits are the valid address bits, the LSB shall be ignored). The slave shall

again acknowledge the transmission and wait for the 8bits data which shall be written to the

specified register address. After slave acknowledges the data byte, master generates a stop

signal and terminates the writing protocol.

Data transferred by Master

Data transferred by Slave

Figure 22: I²C one byte write protocol

1 2 ... 41 42 43 44 45 46 47 48 49 50 51 ... 62 63

Sin comentarios

Bosch MAN-REG-X-08 Especificaciones Pagina 46