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參數(shù)資料
| 型號： | MT90820 |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | Large Digital Switch(大數(shù)字開關(guān)) |
| 中文描述： | 大型數(shù)字交換（大數(shù)字開關(guān)） |
| 文件頁數(shù)： | 16/33頁 |
| 文件大小： | 132K |
| 代理商： | MT90820 |
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MT90820
CMOS
16
Table 13 - Connection Memory Bits
Table 14 - CAB Bits Programming for Different Data Rates
Bit
Name
Description
15
LPBK
Per Channel Loopback.
When 1, the STi n channel m data comes from the
STo n channel m. For proper per channel loopback operations, set the delay
offset register bits OFn[2:0] to zero for the streams which are in the loopback
mode. Refer to the section Loopback Control or Connection Memory Control
for more details.
14
V/C
Variable /Constant Throughput Delay.
This bit is used to select between
the variable (low) and the constant delay (high) modes on a per-channel
basis.
13
MC
Message Channel.
When 1, the contents of the connection memory are
output on the corresponding output channel and stream. Only the lower byte
(bit 7 - bit 0) will be output to the ST-BUS output pins. When 0, the contents of
the connection memory are the data memory address of the switched input
channel and stream.
12
CSTo
Control ST-BUS output.
This bit is output on the CSTo pin one channel early.
The CSTo bit for stream 0 is output first.
11
OE
Output Enable.
This bit enables the ST-BUS output drivers on a per-channel
basis.
When 1, the output driver functions normally. When 0, the output driver is in a
high-impedance state.
10 - 8,
7
(Note 1)
SAB3-0
Source Stream Address Bits.
The binary value is the number of the data
stream for the source of the connection.
6 - 0
(Note 1)
CAB6-0
Source Channel Address Bits.
The binary value is the number of the
channel for the source of the connection.
Note 1: If bit 13 (MC) of the corresponding connection memory location is 1 (device in message mode), then these entire 8 bits
(SAB0, CAB6 - CAB0) are output on the output channel and stream associated with this location.
Data Rate
CAB Bits Used to Determine the Source Channel of the Connection
2.048 Mb/s
CAB4 to CAB0 (32 channel/input stream)
4.096 Mb/s
CAB5 to CAB0 (64 channel/input stream)
8.192 Mb/s
CAB6 to CAB0 (128 channel/input stream)
7
6
5
4
3
2
1
0
8
9
10
11
12
13
CAB0
CAB1
CAB2
CAB6
SAB0
CAB3
CAB4
CAB5
SAB1
SAB2
SAB3
OE
CSTo
14
V/C
15
MC
LPBK
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參數(shù)描述 |
|---|---|
| MT90820AL | 制造商:Microsemi Corporation 功能描述:SWIT FABRIC 2K X 2K/1K X 1K/512 X 512 131.072MBPS 5V 100MQFP - Trays |
| MT90820AL1 | 制造商:Microsemi Corporation 功能描述:SWIT FABRIC 2K X 2K/1K X 1K/512 X 512 131.072MBPS 5V 100MQFP - Trays 制造商:MICROSEMI CONSUMER MEDICAL PRODUCT GROUP 功能描述:IC DGTL SWITCH 2048X2048 100MQFP 制造商:Microsemi Corporation 功能描述:IC DGTL SWITCH 2048X2048 100MQFP |
| MT90820AP | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Large Digital Switch |
| MT90820AP1 | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Large Digital Switch |
| MT90820APR | 制造商:Microsemi Corporation 功能描述:SWIT FABRIC 2K X 2K/1K X 1K/512 X 512 5V 84PLCC - Tape and Reel |
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