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參數(shù)資料
| 型號： | MT8985AP |
| 廠商： | ZARLINK SEMICONDUCTOR INC |
| 元件分類： | 路由/交換 |
| 英文描述： | Enhanced Digital Switch |
| 中文描述： | TELECOM, DIGITAL TIME SWITCH, PQCC44 |
| 封裝： | PLASTIC, MS-018AC, LCC-44 |
| 文件頁數(shù)： | 9/26頁 |
| 文件大?。?/td> | 568K |
| 代理商： | MT8985AP |
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MT8985
Data Sheet
9
Zarlink Semiconductor Inc.
Figure 5 - Connection Memory High Bits
x = Don’t care
Figure 6 - Connection Memory Low Bits
During the microprocessor initialization routine, the microprocessor should program the desired active paths
through the matrices, and put all other channels into the high impedance state. Care should be taken that no two
connected ST-BUS outputs drive the bus simultaneously. When this process is complete, the microprocessor
controlling the matrices can bring the ODE signal high to relinquish high impedance state control to the CMH
b
0s.
BIT
NAME
DESCRIPTION
6
V/C
Variable/Constant Throughput Delay Mode.
This bit is used to select between Variable (LOW)
and Constant Delay (HIGH) modes on a per-channel basis.
2
MC
Message Channel.
When 1, the contents of the corresponding location in Connection Memory
Low are output on the corresponding channel and stream. When 0, the contents of the programmed
location in Connection Memory Low act as an address for the Data Memory and so determine the
source of the connection to the location’s channel and stream.
1
CSTo
CSTo Bit.
This bit drives a bit time on the CSTo output pin.
0
OE
Output Enable.
This bit enables the output drivers on a per-channel basis. This allows individual
channels on individual streams to be made high-impedance, allowing switch matrices to be
constructed. A HIGH enables the driver and a LOW disables it.
BIT
NAME
DESCRIPTION
7-5
SAB2-0*
Source Stream Address bits.
These three bits are used to select eight source streams for the
connection. Bit 7 of each word is the most significant bit.
4-0*
CAB4-0*
Source Channel Address bits 0-4.
These five bits are used to select 32 different source channels
for the connection (The ST-BUS stream where the channel is present is defined by bits SAB2-0).
Bit 4 is the most significant bit.
*
If bit 2 of the corresponding Connection High location is 1 or if bit 6 of the Control Register is 1, then these entire 8 bits are output on the
channel and stream associated with this location. Otherwise, the bits are used as indicated to define the source of the connection which is
output on the channel and stream associated with this location.
X
V/C
X
X
X
MC
CSTo
OE
7
6
5
4
3
2
1
0
SAB2
SAB1
SAB0
CAB4
CAB3
CAB2
CAB1
CAB0
7
6
5
4
3
2
1
0
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MT8985APR | Enhanced Digital Switch |
| MT8985APR1 | Enhanced Digital Switch |
| MT8985AP1 | Enhanced Digital Switch |
| MT8985 | CMOS ST-BUS⑩ FAMILY Enhanced Digital Switch |
| MT8985AE | CMOS ST-BUS⑩ FAMILY Enhanced Digital Switch |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MT8985AP1 | 制造商:Microsemi Corporation 功能描述:SWIT FABRIC 256 X 256 16.384MBPS 5V 44PLCC /BAKE/DRYPACK - Rail/Tube 制造商:Microsemi Corporation 功能描述:ENHANCED DIGITAL SWITCH 制造商:Zarlink Semiconductor Inc 功能描述:ENHANCED DIGITAL SWITCH |
| MT8985APR | 制造商:Microsemi Corporation 功能描述: |
| MT8985APR1 | 制造商:Microsemi Corporation 功能描述:SWIT FABRIC 256 X 256 16.384MBPS 5V 44PLCC - Tape and Reel 制造商:MICROSEMI CONSUMER MEDICAL PRODUCT GROUP 功能描述:IC TDM/TSI SWITCH 256X256 44PLCC 制造商:Microsemi Corporation 功能描述:IC TDM/TSI SWITCH 256X256 44PLCC |
| MT8986 | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Multiple Rate Digital Switch |
| MT8986AC | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:CMOS ST-BUS⑩ FAMILY Multiple Rate Digital Switch |
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