參數(shù)資料
型號(hào): SI2401FS08-EVB
廠商: Silicon Laboratories Inc
文件頁(yè)數(shù): 51/76頁(yè)
文件大小: 0K
描述: BOARD EVAL SI2401 + SI3008
標(biāo)準(zhǔn)包裝: 1
系列: ISOmodem®
主要目的: 電信,數(shù)據(jù)采集裝置(DAA)
已用 IC / 零件: SI2401
已供物品: 板,CD
Si2401
Rev. 1.0
55
Reset settings N/A
SE5 (DSP1). (SE8 = 0x02) Read Only Definition
Bit
D7D6
D5
D4D3D2D1
D0
Name
DDAV
TDET
TONE[4:0]
Type
R
Bit
Name
Function
7
DDAV
DSP Data Available.
6TDET
Tone Detected.
Indicates a TONE (any of type 0–25 below) has been detected.
0
= Not detected.
1=Detected.
5
Reserved
Read returns zero.
4:0
TONE[4:0]
Tone Type Detected.
When TDET goes high, TONE indicates which tone has been detected from the following:
TONE
Tone Type
Priority
00000–01111
DTMF 0–15 (DTMFE = 1)1 See Table 17 on page 31.
1
10000
Answer tone detected 2100 Hz (ANSE = 1)2
2
10001
Bell 103 answer tone detected 2225 Hz (ANSE = 1)
2
10010
V.23 forward channel mark 1300 Hz (V23E = 1)3
3
10011
V.23 backward channel mark 390 Hz (V23E = 1)
3
10100
User defined frequency 1 (USEN1 = 1)4
4
10101
User defined frequency 2 (USEN1 = 1)
4
10110
Call progress filter A detected
6
10111
User defined frequency 3 (USEN2 = 1)5
5
11000
User defined frequency 4 (USEN2 = 1)
5
11001
Call progress filter B detected
6
Notes:
1. SE6[0] (DTMFE) SE8 = 0x02.
2.
SE6[1] (ANSE) SE8 = 0x02.
3.
SE6[2] (V23E) SE8 = 0x02.
4.
SE6[3] (USEN1) SE8 = 0x02.
5.
SE6[4] (USEN2) SE8 = 0x02.
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