參數(shù)資料
型號： MC145574
廠商： Motorola, Inc.
英文描述： ISDN S/T-Interface Transceiver
中文描述： 綜合業(yè)務(wù)數(shù)字網(wǎng)S / T的接口收發(fā)器
文件頁數(shù)： 76/164頁
文件大?。?/td> 1072K
代理商： MC145574
MC145574
8–8
MOTOROLA
NR6(0) – Swap B1 and B2
When NR6(0) is 0, the timeslot assigned positions of the B1 and B2 channel data input and output
via the IDL2 interface functions normally. When NR6(0) is set to 1, the timeslot positions of the B1
and B2 channels are reversed; i.e., data entering the device on IDL2 Rx in the B1 timeslot is modulated
onto the B2 timeslot, on the S/T loop. Data demodulated from the B2 timeslot from the S/T loop is
output on IDL2 Tx in the B1 timeslot. The situation is analogous for B2 data entering the device on
IDL2 Rx. This feature is useful in applications where a particular device (such as a codec filter) is
hard–wired to a particular IDL2 timeslot and needs to gain access to the opposite B channel timeslot.
NR6(0) has no effect during a 2B+D IDL2 loopback. Note that NR6(0) is a read/write bit.
NOTE: When NR6(0) is set, the B channel used on the IDL bus must be enabled before being output
on the S/T loop. For example, if data entering the device on Din in the B1 channel is modulated onto
the B2 channel on the S/T loop, then NR5(3) has to be set. On the MC145474/75, this is done differently.
For the same example, NR5(2) is set instead of NR5(3).
NR7 is a pointer register used when accessing a 16–byte–wide register. This pointer register will con-
tain the address of the byte–wide register to be read from or written to, on the following SCP transaction.
This nibble register is not shown on the register map, as it is not programmable.
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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相關(guān)PDF資料
PDF描述
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MC14559B Successive Approximation Registers
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MC145574AACR2 功能描述:IC TRANSCEIVER ISDN 32-LQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動器，接收器，收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 類型:收發(fā)器 驅(qū)動器/接收器數(shù):2/2 規(guī)程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC 包裝:帶卷 (TR)
MC145574ADW 功能描述:IC TRANSCEIVER ISDN 28-SOIC RoHS:否 類別:集成電路 (IC) >> 接口 - 驅(qū)動器，接收器，收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 類型:收發(fā)器 驅(qū)動器/接收器數(shù):2/2 規(guī)程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC 包裝:帶卷 (TR)
MC145574ADWR2 功能描述:IC TRANSCEIVER ISDN 28-SOIC RoHS:否 類別:集成電路 (IC) >> 接口 - 驅(qū)動器，接收器，收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 類型:收發(fā)器 驅(qū)動器/接收器數(shù):2/2 規(guī)程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC 包裝:帶卷 (TR)
MC145574AEG 制造商:Freescale Semiconductor 功能描述:
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