Register Description R820T2 (Rafael Micro) - 2

1 Programming and Registers 1.1 I2C Series Programming Interface
The programmable features of the R820T2 are accessible through an I2C compatible serial interface. Bi-directional data transfers are programmed through the serial clock (SCL) and serial data lines (SDA) at a standard clock rate of 100 KHz and up to 400KHz.
Data Transfer Logic
The I2C control byte includes a fixed 7-bit slave address ID and a read/write (R/W) bit. Fixed I2C slave address ID 0011010 (0x1A) is used for default setting. The R/W bit is set 0 for write and 1 for read (Table 1-1). Write mode and read mode will be further explained in the following sections.
I2C Write/Read Address
Table 1-1 : I2C Read / Write Address I2C Address(Bin) R/W Address (Hex) I2C Mode MSB LSB Write Mode 0 0 1 1 0 1 0 0 0x34 Read Mode 0 0 1 1 0 1 0 1 0x35 CONFIDENTIAL © 2012 by Rafael Microelectronics, Inc. All rights reserved. 2