參數(shù)資料
型號(hào): MC145572AFN
廠商: Freescale Semiconductor
文件頁(yè)數(shù): 13/52頁(yè)
文件大?。?/td> 0K
描述: IC TRANSCEIVER ISDN 44-PLCC
標(biāo)準(zhǔn)包裝: 26
類型: 收發(fā)器
規(guī)程: RS232
電源電壓: 5V
安裝類型: 表面貼裝
封裝/外殼: 44-LCC(J 形引線)
供應(yīng)商設(shè)備封裝: 44-PLCC(17.525x17.525)
包裝: 管件
21
MC145572EVK
Figure 2-7. Bit Error Rate Test Set-Up NT Side
2.5.1.1
OTHER LOOP-BACK TESTS.
A variety of other loop-back modes may be implemented.
Some modes are accessible through the activation menu while others require a working knowledge of the
SCP registers and are accessed through the command line interface of the monitor program. Refer to
Figure 2-8 and the text that follows for a description of some of these loop-backs. Refer also to the
MC145572 data book loop-back section. The menu items referred to are for the combined NT/LT mode.
J18 NT RxDATA
J20 NT TxDATA
J21 NT CLK
30
W*
GND
BIT ERROR RATE TESTER
EXTERNAL RxCLOCK
EXTERNAL TxCLOCK
RECEIVE DATA IN
TRANSMIT DATA OUT
*On some cases, this resistor may be needed to dampen ringing on clock transitions.
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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