Datasheet

RDA Microelectronics, Inc. RDA5807M FM Tuner V1.1
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 11 of 22
REG BITS NAME FUNCTION DEFAULT
1 = Block E has been found
0 = no Block E has been found
10 ST
Stereo Indicator.
0 = Mono; 1 = Stereo
1
9:0 READCHAN[9:0] Read Channel.
BAND = 0
Frequency
= Channel Spacing (kHz) x
READCHAN[9:0]+ 87.0 MHz
BAND = 1 or 2
Frequency = Channel Spacing (kHz) x
READCHAN[9:0]+ 76.0 MHz
BAND = 3
Frequency = Channel Spacing (kHz) x
READCHAN[9:0]+ 65.0 MHz
READCHAN[9:0] is updated after a tune or
seek operation.
8’h00
0BH 15:9 RSSI[6:0] RSSI.
000000 = min
111111 = max
RSSI scale is logarithmic.
0
8 FM TRUE 1 = the current channel is a station
0 = the current channel is not a station
0
7 FM_READY 1=ready
0=not ready
0
<6:5> reserved
0
<4> ABCD_E 1= the block id of register 0cH,0dH,0eH,0fH is E
0= the block id of register 0cH, 0dH, 0eH,0fH is
A, B, C, D
<3:2> BLERA[1:0]
Block Errors Level of RDS_DATA_0, and is
always read as Errors Level of RDS BLOCK A
(in RDS mode) or BLOCK E (in RBDS mode
when ABCD_E flag is 1)
00= 0 errors requiring correction
01= 1~2 errors requiring correction
10= 3~5 errors requiring correction
11= 6+ errors or error in checkword, correction
not possible.
Available only in RDS Verbose mode
<1:0> BLERB[1:0] Block Errors Level of RDS
_DATA_1, and is
always read as Errors Level of RDS BLOCK B
(in RDS mode ) or E (in RBDS mode when
ABCD_E flag is 1).
00= 0 errors requiring correction
01= 1~2 errors requiring correction
10= 3~5 errors requiring correction