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: 105/121页
文件大小: 1219K
代理商: PCM9211PTR
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
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.
84
Copyright 2010, Texas Instruments Incorporated
Product Folder Link(s): PCM9211
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