RDA Microelectronics, Inc. RDA5807M FM Tuner V1.0 6Register Definition REG BITS NAME FUNCTION DEFAULT 00H15:8CHIPID[7:0]Chip ID. 0x58 02H15DHIZAudio Output High-Z Disable. 0 0 = High impedance; 1 = Normal operation14DMUTEMute Disable. 0 0 = Mute; 1 = Normal operation13MONOMono Select. 0 0 = Stereo; 1 = Force mono12BASSBass Boost. 0 0 = Disabled; 1 = Bass boost enabled11RCLKNON-CALIBRATE0=RCLK clock is always supply 0 MODE1=RCLK clock is not always supply when FMwork ( when 1, RDA5807M can’t directlysupport -20 ℃ ~70 ℃ temperature. Onlysuppory ±20 ℃ temperature swing from tunepoint)10RCLK DIRECT INPUT MODE1=RCLK clock use the directly input mode 0 9SEEKUPSeek Up. 0 0 = Seek down; 1 = Seek up8SEEKSeek. 0 0 = Disable stop seek; 1 = EnableSeek begins in the direction specified bySEEKUP and ends when a channel is found,or the entire band has been searched.TheSEEK bit is set low and theSTC bit is sethigh when the seek operation completes.7SKMODESeek Mode 0 0 = wrap at the upper or lower band limit andcontinue seeking1 = stop seeking at the upper or lower bandlimit6:4CLK_MODE[2:0]000=32.768kHz 000 001=12Mhz101=24Mhz010=13Mhz110=26Mhz011=19.2Mhz111=38.4Mhz3RDS_ENRDS/RBDS enable 0 If 1, rds/rbds enable2NEW_METHODNew Demodulate Method Enable, can improve 0 the receive sensitivity about 1dB.1SOFT_RESETSoft reset. 0 If 0, not reset;If 1, reset. The information contained herein is the exclusive property of RDA and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of RDA. Page 9 of 23