參數(shù)資料
型號(hào): 73M2921-IG
廠商: Electronic Theatre Controls, Inc.
英文描述: Advanced Single Chip Modem
中文描述: 先進(jìn)的單芯片調(diào)制解調(diào)器
文件頁(yè)數(shù): 25/41頁(yè)
文件大?。?/td> 222K
代理商: 73M2921-IG
73M2921
Advanced Single
Chip Modem
February 99 Rev M
TDK Semiconductor
Page 25 of 41
DETECT 2 ENABLE REGISTER
ADDRESS: 0Ah (010d, 01010b)
MODE: SEE DET REG 2
BIT D7
2250Hz
BIT D6
V21
BIT D5
2225Hz
BIT D4
2100Hz
BIT D3
1100Hz
BIT D2
1300Hz
BIT D1
RES.
BIT D0
CPD1
This is the enable register for Detect 2. Setting bits in this register enables the unsolicited interrupt feature.
These bits have a 1 to 1 correspondence with Detect Register 2. A “1” in each bit location would enable the
detect register bit of the same name. The default value is “0”. See Detect Register 2.
DETECT REGISTER 2 (READ ONLY)
ADDRESS: 0Bh (011d, 01011b) MODE: SEE BELOW
BIT D7
2250Hz
BIT D6
V21
BIT D5
2225Hz
BIT D4
2100Hz
BIT D3
1100Hz
BIT D2
1300Hz
BIT D1
RES.
BIT D0
CPD1
BIT NO.
D0
NAME
CONDITION
Valid in Call
Progress Mode
DESCRIPTION
Imprecise call progress detector, energy detected in
the 350-600 Hz band.
Reserved for future use.
This bit will be set if 1300 Hz Data Modem Calling
Tone is detected.
Call Progress
Filter 1
Reserved
1300 Hz Detect
D1
D2
Valid in Call
Progress Mode
Answer Only
Valid in Call
Progress Mode
Answer Only
Valid in Call
Progress Modes
Originate Only
Valid in Call
Progress Modes
Originate Only
Valid in Call
Progress Modes
Originate Only
Valid in Call
Progress Modes
Originate Only
D3
1100 Hz Detect
This bit will be set if 1100 Hz Fax Modem Calling
Tone is detected.
D4
2100 Hz Detect
This bit will be set if 2100 Hz Answer Tone is
detected.
D5
2225 Hz Detect
This will be set if 2225 Hz Answer Tone is detected.
D6
V21 Detect
(High Band)
This bit will be set if V.21 channel 2 tone is detected.
D7
2250 Hz Detect
This bit will be set if the 2250Hz component of S0
(unscrambled mark) is detected.
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