- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄380765 > STLC5412P (意法半導(dǎo)體) 2B1Q U INTERFACE DEVICE ENHANCED WITH DECT MODE PDF資料下載
參數(shù)資料
| 型號： | STLC5412P |
| 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接口裝置加強與無繩模式 |
| 文件頁數(shù)： | 18/74頁 |
| 文件大?。?/td> | 655K |
| 代理商： | STLC5412P |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁當(dāng)前第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁
GCI MODE
The GCI is a standard interface for the intercon-
nection of dedicated ISDN components in the dif-
ferentequipments of the subscriberloop :
In a Terminal, GCI interlinks the STLC5412, the
ISDN layer 2 (LAPD) controllerand the voice/data
processing componentsas an audio-processoror
a TerminalAdaptor module.
In NT1-2, PABX subscriber line card, or central
office line card (LT), GCI interlinks the UID, the
ISDN Layer 2 (LAPD) controllers and eventually
the backplane where the channels are multi-
plexed.
In NT1, GCI interlinks SID-GCI and STLC5412,
via automode (NT1-auto). In Regenerators, GCI
links both STLC5412 UID in automode (NT-RR-
auto, LT-RR-auto). (See Fig. 4a)
Frame Structure
2B+D data and controlinterfaceis transferredin a
time-division multiplexed mode based on 8 kHz
frame structure and assigned to four octets per
frameand direction.(seefig.4b).
The 64 kbit/s channels B1 and B2 are conveyed
in the first two octets; the third octet (M: Monitor)
is used for transferring most of the control and
status registers; the fourth octet (SC: Signalling &
Control) contains the two D channel bits, the four
C/I (command/lndicate)bits controlling the activa-
tion/deactivation procedures, and the E & A bits
which support the handling of the Monitor chan-
nel.
These four octets per frame serving one ISDN
subscribers line form a GCI Channel. One GCI
channel calls for a bit rate of 256 kbit/s.
In NT1-2s or subscriber Line Cards up to 8 GCI
channels may be carried in a frame of a GCI mul-
tiplex. The bit rate of a GCImultiplex may be from
256 kbit/s and up to 3088 kbit/s. Adjacent 4-octet
slots from the frame start are numbered 0 to 7.
The GCI channel takes the number of the slot it
occupies.Spare bits in the framebeyond 256 bits
from the frame start will be ignored by GCI com-
patible devices but may be used for other pur-
poses if required (see Fig.4c). GCI channel num-
ber is selected by biasing pins S0,S1,S2.
PhysicalLinks
Four physical links are usedin the GCI.
Transmitteddata to the line: Bx
Receiveddata from the line: Br
Data clock: BCLK
Frame Synchronizationclock: FSa
GCI is always synchronized by frame and data
clocks derived by any master clock source.
A device used in NT mode can deliver clock
sources able to synchronize GCI, either directly,
or via a local Clock Generator synchronized on
the line by means of the SCLK 15.36 MHz output
clock. Frame clock and data clock could be inde-
pendent of the internal devices clocks. Logical
one on the Br output is the high impedance state
while logical zero is low voltage. For E and A bits,
active state is voltage Low while inactive state is
high impedance state.
LT
NT-RR-AUTO
LT-RR-AUTO
NT1-AUTO
SID-GCI
SID-GCI
TERMINAL
NT1
REPETOR
NT
LINE TERMINATION
S
U
U
U
Figure 4a:
GCI configurations of the UID
PRIVATE TERMINAL
OR NT1-2
Figure 4a:
GCIconfigurationsof the UID.
STLC5412
18/74
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 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 |
| STLC7550TQF7 | LOW POWER LOW VOLTAGE ANALOG FRONT END |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| STLC5444B1 | 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)。