Datasheet

PCM9211
SBAS495 –JUNE 2010 www.ti.com
Register 38h, Port Sampling Frequency Calculator Result Output
(Address: 38h, Read-Only)
DATA B7 B6 B5 B4 B3 B2 B1 B0
Reg Name PFSST PFSPO2 PFSPO1 PFSPO0 PFSOUT3 PFSOUT2 PFSOUT1 PFSOUT0
Default Value N/A N/A N/A N/A N/A N/A N/A N/A
Memo
PFSST: Port Sampling Frequency Calculate Status
0: Calculated
1: Calculating
PFSPO[2:0]: Calculated Port Information
000: DIR
001: ADC
010: AUXIN0
011: AUXIN1
100: AUXIN2
101: Main output port
110: AUX output port
111: DIT
PFSOUT[3:0]: Calculated Sampling Frequency
0000: Out of range
0001: 8 kHz
0010: 11.025 kHz
0011: 12 kHz
0100: 16 kHz
0101: 22.05 kHz
0110: 24 kHz
0111: 32 kHz
1000: 44.1 kHz
1001: 48 kHz
1010: 64 kHz
1011: 88.2 kHz
1100: 96 kHz
1101: 128 kHz
1110: 176.4 kHz
1111: 192 kHz
NOTE
PFSST, PFSPO, and PFSOUT always output the status when these registers are read.
The other registers do not have clear functions when these are read. To enable these
registers, DIR must be powered on. For example, (Register 40h/RXDIS = 0) PFSST
indicates Calculating and PFSOUT indicates the previous value when no source comes to
the port that is selected by Register 37h/PFSTGT.
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