參數(shù)資料
型號： STLC5412FN
廠商： 意法半導(dǎo)體
英文描述： 2B1Q U INTERFACE DEVICE ENHANCED WITH DECT MODE
中文描述： 2B1Q U接口裝置加強(qiáng)與無繩模式
文件頁數(shù)： 41/74頁
文件大小： 655K
代理商： STLC5412FN
in a known deactivatedstate, e.g. in an LT after a
DI statusindication has been reported. In GCI, C/I
indication DI is sent twice on Br outputbefore UID
powers down.
0110 (UAR):
U-interface-only Activation Request
Being in Power Up and deactivated , UAR com-
mand forces UID through the appropriate se-
quence to activate the loop without activating the
S/T interface. SL2/SL3 signal is sent with uoa bit
set to zero. With the line already active, UAR
command forces bit uoa equal zero: this is in-
tendedto deactivatethe S/T interface.
0111 (QM):
Quiet Mode
This command has the same effect as in NT
mode.
1000 (AR):
ActivationRequest
Being Power Up and deactivated, AR instruction
forces UID through the appropriate sequence to
activate the line by sending TL followed by SL1.
SL2/SL3 signal is sent with uoa bit equal one.
Beeing in the U-only-active states, AR command
forces the uoa bit equal 1 to the line. AR is in-
tendedto activatethe S/T interface.
1010 (ARL):
Activation Request with Loopback
ARL test command forces UID through the appro-
priate sequence to activate with the complete
transmit data stream looped-back to the receiver.
When this loop-back is disabled by DR command,
UID is ready to operate a warm start if a newARL
command is issued.
1011 (SP3):
SendSingle Pulse +3, -3
SP3 test command forces UID to
pulses to the line,one pulse per frame.
1100 (AI):
ActivationIndicate
AI is an optional command recognized only when
BP2 bit in CR2 register is set equal one or LT-
RR-AUTO mode is selected. Being in the super-
frame-synchronized state with act bit received
from the line equal one, AI command allows UID
to send act bit equal one to the line.
1111 (DI):
DeactivationIndicate
The DI command allows the UID to automatically
enter the power down state if the line is deacti-
vated. DI command has no effect as long as the
line is not deactivated (DI status indication re-
ported).
send +3, -3
LT mode: Statusindication
0001 (EIU):
Error IndicationInterfaceU
It can be a ”loss of signal”, a ”loss of sync.” or an
expiry of 15s timer. EIU is also the answer to the
RES comand.
After sending EIU, the UID is always ready for a
cold start.
0100 (EI):
Error Indication
EI status indication reports that act bit has been
detected equal zero.
0110 (UAI):
U interfaceActivationIndication
UAI reports that the line is superframe synchro-
nized.
1000 (AP):
ActivationPending
Being in one of the deactivatedstates, AP reports
that a wake up tone has been detected from the
line. Beeing in the U-only-activated state, AP re-
ports that sai bit has been detected equal one
from the line. It is intended to reflect an activation
attemptat the S/T interface.
1100 (AI):
ActivationIndication
AI reports that UID is superframe synchronized
with act bit received equal one. TE side of the
loop relative to the UID is active
1111 (DI):
DeactivationIndication
DI reports that UID has entered the deactivated
state (J1).
B1, B2 AND D CHANNELS TRANSPARENCY
UID is ableto control automaticallytransparencyof
B1, B2 and D channels. Nevertheless, when ETC
bit in CR2 register is set equal 1, transparency is
forcedassoon astheline is synchronized.
It is also possible to control each data channelB1,
B2, D enabling at the DSI/GCI interface inde-
pendently by means of bits EB1, EB2 and ED in
CR4 register. Set to 1, B1, B2 or D channelon the
DSI/GCI interface are enabled. In this case, out of
the transparency state (s), ones are forced on the
relevanttime slotof theDSI/GCI,and onesor zeros
are transmitted on the line conforming recommen-
dations. Set equal 0, relevant time slot on DSI/GCI
is always in high impedance state and ones or ze-
ros are transmitted on the line. In this last case, as
soon as transparency is enabled, ones are trans-
mittedto theline.
When RDT test command is applied, transpar-
ency on 2B+D is forced. This intend to permit the
user, if required, to send a random sequence of
bits to the line. Please note that the on-chip
scrambler
normally ensures
equiprobablelevels to the line, even if logical one
only is provided to the DSI/GCIsysteminterface.
transmission
of
INTERNAL REGISTERSDESCRIPTION.
Here
following
a
STLC5412internal registers.
Internalregisters can be accessed:
a) In GCI mode, according to the Monitor channel
exchange rules. For RXACT and TXACT also
throughC/I channel.
b) in
μ
W/DSI mode, using the MICROWIRE inter-
face according to the rules described in section
”
μ
W controlinterface”.
Tables 8 and 10 gives the list of all STLC5412 in-
ternal registers.
Registers are grouped by types and address ar-
eas:
detailed
description
of
STLC5412
41/74
相關(guān)PDF資料
PDF描述
STLC5412P 2B1Q U INTERFACE DEVICE ENHANCED WITH DECT MODE
STLC5444 Quad Feed Power Supply(ISDN四饋電電源)
STLC5460 Line Card Interface Controller(線路卡片接口控制器)
STLC7546 MODEM (V.34bis) Analog Front End(調(diào)制解調(diào)器模擬前端)
STLC7550TQFP LOW POWER LOW VOLTAGE ANALOG FRONT END
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
STLC5412P 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:2B1Q U INTERFACE DEVICE ENHANCED WITH DECT MODE
STLC54155 功能描述:電信集成電路 155MBit Coaxial Intr RoHS:否 制造商:STMicroelectronics 類型:Telecom IC - Various 工作電源電壓:4.75 V to 5.25 V 電源電流: 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFP-100 封裝:Tray
STLC5432 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:2Mbit CEPT & PRIMARY RATE CONTROLLER DEVICE
STLC5432Q 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:2Mbit CEPT & PRIMARY RATE CONTROLLER DEVICE
STLC5444 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:QUAD FEEDER POWER SUPPLY
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(jìn)入我的后臺，查看報(bào)價(jià)

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

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*