- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄383642 > MT8924 (Mitel Networks Corporation) PCM Conference Circuit (PCC) Preliminary Information PDF資料下載
參數(shù)資料
| 型號： | MT8924 |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | PCM Conference Circuit (PCC) Preliminary Information |
| 中文描述： | 會(huì)議的PCM電路（PCC）的初步信息 |
| 文件頁數(shù)： | 6/18頁 |
| 文件大小： | 102K |
| 代理商： | MT8924 |
MT8924
Preliminary Information
8-8
control byte. The data byte contains the number of
the channel to be disconnected. The second byte
contains the opcode (D0-D3). One frame pulse
must
pass
between
reconnection of the same channel.
disconnection
and
Instruction 4 : Overflow Status Monitoring
This function extracts overflow status information
on all existing conferences and transfers it to the
microprocessor data bus. This instruction consists
of two control bytes which are differentiated by the
C/D control signal. C/D set Low reads the status of
the first eight conferences, while C/D set High
reads the status of the remaining two conferences.
A
conference
is
in
corresponding status bit is high.
overflow
when
the
Instruction 5 : PCM Mode Select
This function is used to set the PCM format. The
control byte from the microprocessor consists of
one data byte. It contains the Extra Bit E (D6), the
Format Bits F1-F0 (D5, D4), and the opcode (D0-
D3). The E bit must be high when the PCM frame
contains an extra bit (i.e. 1.544 Mb/s). Normally E
is Low. Bits F1-F0 are used to select the PCM byte
format, according to Table 2. After RESET the
default values correspond to F1 at Low and F0 at
High if A-Law is selected, and F1 at High and F0 at
High if
μ
-Law is selected. All channels must be
disconnected
when
the
instruction is sent. They must remain disconnected
for at least two frame pulses after the instruction is
sent. It is recommended that this instruction be
used immediately following a system reset (see
RESET pin description).
PCM
mode
select
Instruction 6 : Status Monitoring
This function is a read operation which consists of
a data byte, a control byte, and a status byte. It
extracts information for test and diagnostic
purposes and transfers it to the microprocessor
bus. The first byte contains the channel number,
while the second byte contains the opcode (D0-
D3). The third byte contains the status information
about the operating mode of the channel (D4-D7);
the attenuation level (D2-D3); and the noise
suppression level (D0-D1).
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MT8930B | () |
| MT8931B | () |
| MT8930C-1 | SWITCH, ON-OFF, CHROM/BLK BTN; Switch function type:SPST Latching; Voltage, contact AC max:125V; Voltage, contact DC max:24V; Temp, op. max:85(degree C); Temp, op. min:-40(degree C); Diameter, panel cut-out:13.6mm; Length / Height, RoHS Compliant: Yes |
| MT8930C | Subscriber Network Interface Circuit(用戶網(wǎng)絡(luò)接口電路（提供點(diǎn)到點(diǎn)或點(diǎn)到多點(diǎn)數(shù)字傳送）) |
| MT8930 | 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 |
|---|---|
| MT8924-1 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:PCM Conference Circuit (PCC) Preliminary Information |
| MT8924AE | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:PCM Conference Circuit (PCC) Preliminary Information |
| MT8924AS | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:PCM Conference Circuit (PCC) Preliminary Information |
| MT8926 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:ISO-CMOS ST-BUS⑩ FAMILY T1 Performance Monitoring Adjunct Circuit (PMAC) |
| MT8926AE | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:ISO-CMOS ST-BUS⑩ FAMILY T1 Performance Monitoring Adjunct Circuit (PMAC) |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。