Si4703-B17
Confidential Rev. 1.0 29
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Reset value = 0x0000
Register 0Ah. Status RSSI
Bit D15D14D13 D12 D11D10D9 D8D7D6D5D4D3D2D1D0
Name RDSR STC SF/BL AFCRL RDSS BLERA[1:0] ST RSSI[7:0]
Type RRR R R R R R
Bit Name Function
15 RDSR RDS Ready.
0 = No RDS group ready (default).
1 = New RDS group ready.
Refer to “4.4. RDS/RBDS Processor and Functionality”.
14 STC Seek/Tune Complete.
0 = Not complete (default).
1 = Complete.
The seek/tune complete flag is set when the seek or tune operation completes. Setting
the SEEK 02h[8] or TUNE 03h[15] bit low will clear STC.
13 SF/BL Seek Fail/Band Limit.
0 = Seek successful.
1 = Seek failure/Band limit reached.
The SF/BL flag is set high when SKMODE 02h[10] = 0 and the seek operation fails to
find a channel qualified as valid according to the seek parameters.
The SF/BL flag is set high when SKMODE 02h[10] = 1 and the upper or lower band limit
has been reached.
The SEEK 02h[8] bit must be set low to clear SF/BL.
12 AFCRL AFC Rail.
0 = AFC not railed.
1 = AFC railed, indicating an invalid channel. Audio output is softmuted when set.
AFCRL is updated after a tune or seek operation completes and indicates a valid or
invalid channel. During normal operation, AFCRL is updated to reflect changing RF envi-
ronments.
11 RDSS RDS Synchronized.
0 = RDS decoder not synchronized (default).
1 = RDS decoder synchronized.
Available only in RDS Verbose mode (RDSM 02h[11] = 1).
Refer to “4.4. RDS/RBDS Processor and Functionality”.
10:9 BLERA[1:0] RDS Block A Errors.
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 02h[11] = 1).
Refer to “4.4. RDS/RBDS Processor and Functionality”.
