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)： 85/164頁
文件大?。?/td> 1072K
代理商： MC145574
MC145574
9–9
MOTOROLA
BR9(7:4)
NT: SC2 to Loop
— BR9(7:4) is used for multiframing. In the NT mode of operation, these four bits
correspond to subchannel 2 for transmission to the TE(s). Multiframing is initiated by the NT by setting
BR7(5). When multiframing is enabled, the NT will transmit the bits in BR9(7:4) as subchannel 2, in
accordance with CCITT I.430, ETSI ETS 300012, and ANSI T1.605. BR9(7:4), are internally polled
at the start of every multiframe (this occurs every 5 ms and the device can be programmed to give
an interrupt at the start of every multiframe), and the contents are interpreted as subchannel 2. If
multiframing is enabled and the contents of BR9(7:4) have not been updated, the subchannel is re–
transmitted as is. BR9(7:4) can be updated any time between the 5 ms interrupts. In the NT mode
of operation, BR9(7:4) are write only bits. These bits are reset to 0 by application of either a software
or hardware reset. Note that BR9(7) is the MSB of SC2 and BR9(4) is the LSB. Refer to Section 10
for a detailed description of the multiframe procedure.
TE: SC2 from Loop
— BR9(7:4) are used in the multiframing mode of operation. When the device
is configured as a TE and multiframing has been enabled, these bits correspond to the received sub-
channel 2 nibble from the NT. These bits are updated once every multiframe. BR9(7:4) are read only
bits and are reset to 0 by application of either a software or hardware reset. Note that BR9(7) is the
MSB of SC2 and BR9(4) is the LSB. Refer to Section 10 for a detailed description of the multiframe
procedure.
BR9(3:0)
NT: SC3 to Loop
— BR9(3:0) is used for multiframing. In the NT mode of operation, these four bits
correspond to subchannel 3 for transmission to the TE(s). When multiframing is enabled, the NT will
transmit the bits in BR9(3:0) as subchannel 3, in accordance with CCITT I.430, ETSI ETS 300012,
and ANSI T1.605. BR9(3:0) are internally polled at the start of every multiframe (this occurs every
5 ms and the device can be programmed to give an interrupt at the start of every multiframe), and
the contents are interpreted as subchannel 3. If multiframing is enabled and the contents of BR9(3:0)
have not been updated, the subchannel is re–transmitted as is. BR9(3:0) can be updated any time
between the 5 ms interrupts. In the NT mode of operation, BR9(3:0) are write only bits. These bits
are reset to 0 by application of either a software or hardware reset. Note that BR9(3) is the MSB of
SC3 and BR9(0) is the LSB. Refer to Section 12 for a detailed description of the multiframe procedure.
TE : SC3 from Loop
— BR9(3:0) are used in the multiframing mode of operation. When the device
is configured as a TE and multiframing has been enabled, these bits correspond to the received sub-
channel 3 nibble from the NT. These bits are updated once every multiframe. BR9(3:0) are read only
bits and are reset to 0 by application of either a software or hardware reset. Note that BR9(3) is the
MSB of SC2 and BR9(0) is the LSB. Refer to Section 10 for a detailed description of the multiframe
procedure.
(7)
(6)
(5)
(4)
(3)
(2)
(1)
(0)
BR10
NT:
TXSC4.1
TE:
RXSC4.1
NT:
TXSC4.2
TE:
RXSC4.2
NT:
TXSC4.3
TE:
RXSC4.3
NT:
TXSC4.4
TE:
RXSC4.4
NT:
TXSC5.1
TE:
RXSC5.1
NT:
TXSC5.2
TE:
RXSC5.2
NT:
TXSC5.3
TE:
RXSC5.3
NT:
TXSC5.4
TE:
RXSC5.4
BR10(7:4)
NT: SC4 to Loop
— BR10(7:4) are used for multiframing. In the NT mode of operation, these four
bits correspond to subchannel 4 for transmission to the TE(s). When multiframing is enabled, the NT
will transmit the bits in BR10(7:4) as subchannel 4, in accordance with CCITT I.430, ETSI ETS 300012,
and ANSI T1.605. BR10(7:4) are internally polled at the start of every multiframe (this occurs every
5 ms and the device can be programmed to give an interrupt at the start of every multiframe), and
the contents are interpreted as subchannel 4. If multiframing is enabled and the contents of BR10(7:4)
have not been updated, the subchannel is re–transmitted as is. BR10(7:4) can be updated any time
between the 5 ms interrupts. In the NT mode of operation, BR10(7:4) are write only bits. These bits
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
相關(guān)PDF資料
PDF描述
MC14559BDWR2 Successive Approximation Registers
MC14559B Successive Approximation Registers
MC14559BCP Successive Approximation Registers
MC1455 Timing Circuit
MC1455BD Timing Circuit
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC145574AAC 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:- 標準包裝: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)
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:- 標準包裝: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:- 標準包裝: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:- 標準包裝: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:
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*