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參數(shù)資料
型號(hào): IDT82P2821BHG
廠商: IDT, Integrated Device Technology Inc
文件頁數(shù): 8/151頁
文件大?。?/td> 0K
描述: IC LINE INTERFACE UNIT 640-PBGA
標(biāo)準(zhǔn)包裝: 5
功能: 線路接口單元(LIU)
接口: E1,J1,T1
電路數(shù): 1
電源電壓: 1.8V, 3.3V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 640-BGA 裸露焊盤
供應(yīng)商設(shè)備封裝: 640-PBGA-EP(31x31)
包裝: 托盤
包括: 缺陷和警報(bào)檢測(cè),驅(qū)動(dòng)器過流檢測(cè)和保護(hù),LLOS 檢測(cè),PRBSARB / IB 檢測(cè)和生成
其它名稱: 800-1703
82P2821BHG
IDT82P2821
21(+1) CHANNEL HIGH-DENSITY T1/E1/J1 LINE INTERFACE UNIT
Programming Information
105
February 6, 2009
LOOP - Loopback Control Register
Address: 019H, 059H, 099H, 0D9H, 119H, 159H, 199H, 1D9H, (CH1~CH8)
219H, 259H, 299H, 2D9H, 319H, 359H, 399H, 3D9H, (CH9~CH16)
419H, 459H, 499H, 4D9H, 519H, (CH17~CH21)
7D9H (CH0)
Type: Read / Write
Default Value: 00H
Bit
Name
Description
7 - 4
-
Reserved.
3
AUTOLP
This bit determines whether automatic Digital/Remote Loopback is enabled.
0: Automatic Digital/Remote Loopback is disabled. (default)
1: Automatic Digital/Remote Loopback is enabled. The corresponding channel will enter Digital/Remote Loopback when the acti-
vate IB code is detected in the transmit/receive path for more than 5.1 sec.; and will return from Digital/Remote Loopback when
the deactivate IB code is detected in the transmit/receive path for more than 5.1 sec.
2
DLP
This bit controls whether Digital Loopback is enabled.
0: Disable. (default)
1: Enable.
1
RLP
This bit controls whether Remote Loopback is enabled.
0: Disable. (default)
1: Enable.
0
ALP
This bit controls whether Analog Loopback is enabled.
0: Disable. (default)
1: Enable.
7654
321
0
--
AUTOLP
DLP
RLP
ALP
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