参数资料
型号: PCM9211PTR
厂商: TEXAS INSTRUMENTS INC
元件分类: 网络接口
英文描述: DATACOM, TOKEN RING TRANSCEIVER, PQFP48
封装: GREEN, PLASTIC, LQFP-48
文件页数: 106/121页
文件大小: 1219K
代理商: PCM9211PTR
www.ti.com
SBAS495 – JUNE 2010
Register 39h, Incoming Biphase Information and Sampling Frequency
(Address: 39h, Read-Only)
DATA
B7
B6
B5
B4
B3
B2
B1
B0
Reg Name
SFSST
SCSBIT1
RSV
SESOUT3
SESOUT2
SESOUT1
SESOUT0
Default Value
N/A
Memo
SFSST: Incoming Biphase Signal, Sampling Frequency Calculate Status
0: SFSOUT[3:0] Output is calculated
1: In the process of calculating or unlocked
SCSBIT1: Detected Channel Status Bit1 Flag
0: CS Bit1 = 0 (Audio data)
1: CS Bit1 = 1 (Non-audio data)
SFSOUT[3:0]: Incoming Biphase Signal, Actual 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
When SFSST becomes '1' (that is, in the process of calculating or unlocked), SFSOUT
holds the previous data. SFSST and SFSOUT 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 (Register 40h/RXDIS = 0).
Copyright 2010, Texas Instruments Incorporated
85
Product Folder Link(s): PCM9211
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