參數(shù)資料
型號: MC145572APB
廠商: Freescale Semiconductor
文件頁數(shù): 14/52頁
文件大?。?/td> 0K
描述: IC ISDN INTERFACE TXCVER 44-LQFP
標(biāo)準(zhǔn)包裝: 160
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-LQFP
供應(yīng)商設(shè)備封裝: 44-LQFP(10x10)
包裝: 托盤
MC145572EVK
22
Figure 2-8. Loop-Back Modes for the MC145572EVK
A: External Hardware IDL Loop-Back on NT1 Side.
Place a jumper between BNC J18 NTRXDATA and BNC J20. Then, from the NT/LT activation menu, select
option I or C. Or, from the command line interface, disable the S/T-Interface Transceiver by setting NR0(b3)
of the MC145574 to a 1. The MC145574 can also be removed from the board.
B: IDL Loop-Back Internal to S/T-Interface Transceiver.
This loop-back may be implemented either from the NT/LT activation menu or directly from the command
line interface. From the NT/LT activation menu, select option B or H. From the command line interface,
enable a 2B+D IDL loop-back in the S/T-Interface Transceiver by setting NR6(b3) of the MC145574 to a 1.
5 ppm
CLOCK
SOURCE
REFERENCE
CLOCK
GENERATOR
MC145572
ISDN
U-INTERFACE
TRANSCEIVER
MC145574
ISDN
S/T-INTERFACE
TRANSCEIVER
MC68HC705
MICROCONTROLLER
MC145407
GATED
CLOCK
GENERATOR
GATED
CLOCK
GENERATOR
MC145572
ISDN
U-INTERFACE
TRANSCEIVER
IDL
S/T
BERTCLK
U-LOOP
EXT CLK
SCP
RS-232
BERTCLK
A
B
D
E
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F
H
I
C
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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