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| 型号： | 73M1866B-KEYCHN |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 73/88页 |
| 文件大小： | 0K |
| 描述： | BOARD KEYCHAIN INF DANUBE EVM |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
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DS_1x66B_001
73M1866B/73M1966B Data Sheet
Rev. 1.6
75
11.12 Line Sensing Control Functions
These registers contain control information to set up and use the 73M1x66B line sensing functions.
Table 40: Line Sensing Control Functions
Function
Mnemonic
Register
Location
Type
Description
CIDM
0x15[4]
W
Caller ID Mode
0 = Disable Caller ID Mode. (Default)
1 = Enables Caller ID Mode by coupling the signal from the RGN/RGP
pins to the PCM DX pins in the appropriate PCM codec format. A 20 dB
gain boost is included in the signal path. The RXBST bit should also be
set to allow the total nominal gain of 40 dB in the Caller ID path. The
normal signal path is disconnected.
RXBST
0x14[3]
WO
Received Boost
If set to 1, Receive signal is increased by 20 dB. Default is 0. This is
used to amplify signals that are passed through the auxiliary A/D when
On-Hook.
Ring Detection Status Bits
ENRGDT
0x05[0]
W
Enable Ring Detection Interrupt
This control bit enables the ring detection interrupt.
0 = Ring Detection Interrupt Disabled.
1 = Ring Detection Interrupt Enabled. (Default)
When 73M1922 detects an incoming ring signal, this bit will be set, if
enabled, and reset when read.
RGDT
0x03[0]
R
Ring or Line Reversal Detection
Voltage greater than the Ring Detect Threshold was detected at
RGP/RGN. This value is latched upon the event and cleared on read.
The threshold is determined by RGTH. This is a maskable interrupt. It is
enabled by the ENRGDT bit.
0 = No Latched Ring or Line Reversal Detection event. (Default)
1 = A Latched Ring or Line Reversal Detection event.
RGMON
0x03[3]
R
Ringing Monitor
Bit 3 monitors the activity of Ringing for further cadence check by the
host:
0 = Silent
1 = Ringing
This bit is not latched. This status bit is reset when read.
RGTH
0x0E[1:0]
W
Ring Detect Threshold
Controls the Ring Detect Threshold assuming a 100:1 reduction of Ring
Voltage into the RGP/RGN pins.
RGTH1
RGTH0
Description
0
Ring Detect disabled. For ring
detection to occur, these bits
must be programmed to a non-
zero state.
0
1
0.15 Vpk equivalent to ±15 Vpk
at Auxiliary A/D input.
1
0
0.30 Vpk equivalent to ±30 Vpk
at Auxiliary A/D input.
1
0.45 Vpk equivalent to ±45 Vpk
at Auxiliary A/D input.
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| 73M1902-IVTR/F | 功能描述:电信线路管理 IC MicroDAA Chip Set Host Side RoHS:否 制造商:STMicroelectronics 产品:PHY 接口类型:UART 电源电压-最大:18 V 电源电压-最小:8 V 电源电流:30 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:VFQFPN-48 封装:Tray |
| 73M1903 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Soft Modem AFEs |
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