參數(shù)資料
型號: SI3015-BS
廠商: Silicon Laboratories Inc
文件頁數(shù): 41/64頁
文件大?。?/td> 0K
描述: IC ISOMODEM LINE-SIDE DAA 16SOIC
標(biāo)準(zhǔn)包裝: 48
系列: ISOmodem®
數(shù)據(jù)格式: V.90
波特率: 2.4k
電源電壓: 3.3V,5V
安裝類型: 表面貼裝
封裝/外殼: 16-SOIC(0.154",3.90mm 寬)
供應(yīng)商設(shè)備封裝: 16-SOIC N
包裝: 管件
Si3038
46
Rev. 2.01
Reset settings = 0x0000
This read/write register defines the loopback modes available for the modem line ADCs/DACs.
The default value after cold register reset (0xx000) is all loopbacks disabled.
Figure 33. Loopback Points
Register 56h Miscellaneous Modem AFE Status and Control
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
MLNK
L2B2
L2B1
L2B0
L1B2
L1B1
L1B0
Bit
Name
Function
15:13
Reserved Read returns zero.
12
MLNK
Controls an MC‘97’s AC-link status. 1 sets the MC‘97’s AC-link
to off (sleep), 0 sets the link on (active).
11:7
Reserved Read returns zero.
6:4
L2B[2:0]
Line 2 Loopback Modes.
000 = Disabled (default).
001 = ADC Loopback (I
→B).
010 = Local Analog Loopback (F
→M).
011 = Digital DAC Loopback (C
→J).
100 = Remote Analog Loopback (M
→F).
101 = ISOcap Loopback (D
→K).
110 = External Analog Loopback (G
→N).
111 = Reserved.
3
Reserved Read returns zero.
2:0
L1B[2:0]
Line 1 Loopback Modes.
000 = Disabled (default).
001 = ADC Loopback (I
→B).
010 = Local Analog Loopback (F
→M).
011 = Digital DAC Loopback (C
→J).
100 = Remote Analog Loopback (M
→F).
101 = ISOcap Loopback (D
→K).
110 = External Analog Loopback (G
→N).
111 = Reserved.
AC
Link
Analog
DAC
Analog
ADC
I/O
Pad
I/O
Pad
A
3024
3014
BD
E
F
G
HI
K
L
M
N
DAC
Output
ADC
Input
Note: For all loopback m odes except 011, line-side m ust be powered on and off-hook.
C
J
Digital
Filter
Digital
Filter
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