參數(shù)資料
型號(hào)： SI3014
廠商： Electronic Theatre Controls, Inc.
英文描述： GLOBAL MC 97 SILICON DAA
中文描述： 全球三菱商事97硅DAA
文件頁(yè)數(shù)： 37/54頁(yè)
文件大?。?/td> 1407K
代理商： SI3014
Si3035
Rev. 1.2
37
Reset settings = 0000_0000
Register 5. DAA Control 1
Bit
D7
D6
D5
D4
D3
D2
D1
D0
Name
OPOL
ONHM
RDT
OHE
OH
Type
R/W
R/W
R
R/W
R/W
Bit
Name
Function
7:5
Reserved
Read returns zero.
4
OPOL
Off-Hook Polarity
.
0 = Off-hook pin is active low.
1 = Off-hook pin is active high.
On-Hook Line Monitor
.
0 = Normal on-hook mode.
1 = Enables low-power monitoring mode allowing the DSP to receive line activity without
going off-hook. This mode is used for caller ID detection.
Ring Detect
.
0 = No ring is occurring. Reset either 4.5–9 seconds after last positive ring is detected or
when the system executes an off-hook.
1 = Indicates a ring is occurring.
Off-Hook Pin Enable
.
0 = Off-hook pin is ignored.
1 = Enables the operation of the off-hook pin.
Off-Hook
.
0 = Line side chip is on-hook.
1 = Causes the line side chip to go off-hook. This bit operates independently of OHE and is a
logic OR with the off-hook pin when OHE = 1.
3
ONHM
2
RDT
1
OHE
0
OH
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