SI4708-C Datasheet, PDF (30/40 Pages) Silicon Laboratories – BROADCAST FM RADIO TUNER FOR PORTABLE APPLICATIONS

Si4708/09-C
Register 0Bh. Read Channel
Bit D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
Name BLERB[1:0] BLERC[1:0] BLERD[1:0]
READCHAN[9:0]
Type
R
R
R
R
Reset value = 0x0000
Bit
Name
Function
15:14
13:12
11:10
BLERB[1:0]
BLERC[1:0]
BLERD[1:0]
RDS Block B Errors (Si4709 only).
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 (RDSM = 1).
Refer to “4.4. RDS/RBDS Processor and Functionality”.
RDS Block C Errors (Si4709 only).
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 (RDSM = 1).
Refer to “4.4. RDS/RBDS Processor and Functionality”.
RDS Block D Errors (Si4709 only).
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 (RDSM = 1).
Refer to “4.4. RDS/RBDS Processor and Functionality”.
9:0 READCHAN[9:0] Read Channel.
If BAND 05h[7:6] = 00, then Freq (MHz) = Spacing (kHz) x Channel + 87.5 MHz.
If BAND 05h[7:6] = 01, BAND 05h[7:6] = 10, then
Freq (MHz) = Spacing (kHz) x Channel + 76 MHz.
READCHAN[9:0] provides the current tuned channel and is updated during a seek
operation and after a seek or tune operation completes. Spacing and channel are set
with the bits SPACE 05h[5:4] and CHAN 03h[9:0].
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Rev. 1.2