1 * Silicon Labs FM Radio transmitter 1 * Silicon Labs FM Radio transmitter
2 2
3 The Silicon Labs Si4713 is an FM radio transmi 3 The Silicon Labs Si4713 is an FM radio transmitter with receive power scan
4 supporting 76-108 MHz. It includes an RDS enco 4 supporting 76-108 MHz. It includes an RDS encoder and has both, a stereo-analog
5 and a digital interface, which supports I2S, l 5 and a digital interface, which supports I2S, left-justified and a custom
6 DSP-mode format. It is programmable through an 6 DSP-mode format. It is programmable through an I2C interface.
7 7
8 Required Properties: 8 Required Properties:
9 - compatible: Should contain "silabs,si4713" 9 - compatible: Should contain "silabs,si4713"
10 - reg: the I2C address of the device 10 - reg: the I2C address of the device
11 11
12 Optional Properties: 12 Optional Properties:
13 - interrupts-extended: Interrupt specifier for 13 - interrupts-extended: Interrupt specifier for the chips interrupt
14 - reset-gpios: GPIO specifier for the chips re 14 - reset-gpios: GPIO specifier for the chips reset line
15 - vdd-supply: phandle for Vdd regulator 15 - vdd-supply: phandle for Vdd regulator
16 - vio-supply: phandle for Vio regulator 16 - vio-supply: phandle for Vio regulator
17 17
18 Example: 18 Example:
19 19
20 &i2c2 { 20 &i2c2 {
21 fmtx: si4713@63 { 21 fmtx: si4713@63 {
22 compatible = "silabs,si4713"; 22 compatible = "silabs,si4713";
23 reg = <0x63>; 23 reg = <0x63>;
24 24
25 interrupts-extended = <&gpio2 25 interrupts-extended = <&gpio2 21 IRQ_TYPE_EDGE_FALLING>; /* 53 */
26 reset-gpios = <&gpio6 3 GPIO_A 26 reset-gpios = <&gpio6 3 GPIO_ACTIVE_HIGH>; /* 163 */
27 vio-supply = <&vio>; 27 vio-supply = <&vio>;
28 vdd-supply = <&vaux1>; 28 vdd-supply = <&vaux1>;
29 }; 29 };
30 }; 30 };
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