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參數(shù)資料
| 型號(hào)： | MT8931CE |
| 廠商： | ZARLINK SEMICONDUCTOR INC |
| 元件分類： | 數(shù)字傳輸電路 |
| 英文描述： | Subscriber Network Interface Circuit |
| 中文描述： | DATACOM, DIGITAL SLIC, PDIP28 |
| 封裝： | PLASTIC, MS-011AB, DIP-28 |
| 文件頁數(shù)： | 5/39頁 |
| 文件大?。?/td> | 833K |
| 代理商： | MT8931CE |
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Data Sheet
MT8931C
5
Figure 4 - ST-BUS Channel Assignment
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
C
C
C
C
O
O
D
F
D
D
F
The B1 and B2 channels each have a bandwidth of
64 kbit/s and are used to carry PCM voice or data
across the network.
The D-channel is primarily intended to carry
signalling information for circuit switching through
the ISDN network. The SNIC provides the capability
of having a 16 kbit/s or full 64 kbit/s D-channel by
allocating the B1-channel timeslot to the D-channel.
Access to the depacketized D-channel is only
granted through the parallel microprocessor port.
The C-channel provides a means for the system to
control and monitor the functionality of the SNIC.
This control/status channel is accessed by the
system through the ST-BUS or microprocessor port.
The C-channel provides access to two registers
which provide complete control over the state
activation
machine,
the
mechanism as well as the various maintenance
functions. A detailed description of these registers is
discussed in the microprocessor port interface.
D-channel
priority
Line Code
The line code used on the S-interface is a Pseudo
ternary code with 100% pulse width as seen in
Figure 5 below. Binary zeros are represented as
marks on the line and successive marks will
alternate in polarity.
Figure 5 - Alternate Zero Inversion Line Code
A mark which does not adhere to the alternating
polarity is known as a bipolar violation.
BINARY
VALUE
LINE
SIGNAL
Violation
0
1
0
0
0
1
0
0
1
1
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MT8931CP | Subscriber Network Interface Circuit |
| MT8931C-1 | CMOS ST-BUS⑩ FAMILY Subscriber Network Interface Circuit |
| MT8931CE | CMOS ST-BUS⑩ FAMILY Subscriber Network Interface Circuit Preliminary Information |
| MT8931C | CMOS ST-BUS⑩ FAMILY Subscriber Network Interface Circuit Preliminary Information |
| MT8931CC | CMOS ST-BUS⑩ FAMILY Subscriber Network Interface Circuit Preliminary Information |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MT8931CP | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Subscriber Network Interface Circuit |
| MT8940 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:ISO-CMOS ST-BUS⑩ FAMILY T1/CEPT Digital Trunk PLL |
| MT8940-1 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:ISO-CMOS ST-BUS⑩ FAMILY T1/CEPT Digital Trunk PLL |
| MT8940AC | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:T1/CEPT Digital Trunk PLL |
| MT8940AE | 制造商:MITEL 功能描述: |
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