Register Description R820T2 (Rafael Micro) - 2
| Manufacturer | Rafael Micro |
| Description | High Performance Low Power Advanced Digital TV Silicon Tuner in QFN-24 package |
| Pages / Page | 11 / 2 — 1 Programming and Registers. 1.1 I2C Series Programming Interface. Data … |
| File Format / Size | PDF / 229 Kb |
| Document Language | English |
1 Programming and Registers. 1.1 I2C Series Programming Interface. Data Transfer Logic. I2C Write/Read Address
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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
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