參數(shù)資料
型號(hào)： MT90871AV
廠商： ZARLINK SEMICONDUCTOR INC
元件分類(lèi)： 路由/交換
英文描述： Flexible 8K Digital Switch (F8KDX)
中文描述： TELECOM, DIGITAL TIME SWITCH, PBGA196
封裝： 15 X 15 MM, 1 MM PITCH, LBGA-196
文件頁(yè)數(shù)： 32/65頁(yè)
文件大小： 639K
代理商： MT90871AV
MT90871
Data Sheet
32
Zarlink Semiconductor Inc.
channel Message Mode is selected (LMM = HIGH), the lower byte of the LCM word (LCAB7-0) will be
transmitted as data on the output stream (LSTo0-15) in place of data defined by the Source Control, Stream and
Channel Address bits.
.
12.4
Backplane Connection Memory Bit Definition
The Backplane Connection Memory (BCM) has 4,096 addresses of 16-bit words. Each address, accessed
through bits A13-A0 of the microprocessor port, is allocated to an individual Backplane output stream and
channel. The bit definition for each 16-bit word is presented in Table 11, BCM Bits for Local-to-Backplane and
Backplane-to-Backplane Switching .
Bit BSRC selects the switch configuration for Local-to-Backplane or Backplane-to-Backplane. When the per-
channel Message Mode is selected (BMM = HIGH), the lower byte of the BCM word (BCAB7-0) will be
transmitted as data on the output stream (BSTo0-15) in place of data defined by the Source Control, Stream
Address and Channel Address bits.
Bit
Name
Description
15
LSRC
Source Control Bit
When LOW, the source is from the Backplane input port (Backplane Data Memory).
When HIGH, the source is from the Local input port (Local Data Memory).
Ignored when LMM is set HIGH.
14
LMM
Local Message Mode Bit
When LOW, the channel is in Connection Mode.
When HIGH, the channel is in Message Mode.
13
LE
Local Output Enable Bit
When LOW the channel may be high impedance, either at the device output, or set by an
external buffer dependent upon the LORS pin. When HIGH the channel is active.
12-8
LSAB4-0
Source Stream Address Bits
The binary value of these 5 bits represents the input stream number.
Ignored when LMM is set HIGH.
7-0
LCAB7-0
Source Channel Address Bits
The binary value of these 8 bits represents the input channel number when LMM is set
LOW. Transmitted as data when LMM is set HIGH.
Table 10- LCM Bits for Local-to-Local and Backplane-to-Local Switching
Bit
Name
Description
15
BSRC
Backplane Source Control Bit.
When LOW, the source is from the Local input port (Local Data Memory). When HIGH, the source is
from the Backplane input port (Backplane Data Memory).
Ignored when BMM is set HIGH.
14
BMM
Backplane Message Mode Bit.
When LOW, the channel is in Connection Mode. When HIGH, the channel is in Message Mode.
13
BE
Backplane Output Enable Bit.
When LOW the channel may be high impedance, either at the device output or set by an external
buffer, dependent upon the BORS pin. When HIGH the channel is active.
12-8
BSAB4-0
Backplane Source Stream Address Bits.
The binary value of these 5 bits represents the input stream number. Ignored when BMM is set HIGH.
Table 11- BCM Bits for Local-to-Backplane and Backplane-to-Backplane Switching
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MT90871AV2 制造商:Microsemi Corporation 功能描述:PB FREE FLEXIBLE 8K DIGITAL SWITCH - Bulk 制造商:Microsemi Corporation 功能描述:IC, TDM SWITCH 制造商:MICROSEMI CONSUMER MEDICAL PRODUCT GROUP 功能描述:IC DGTL SWITCH F8KDX 196PBGA 制造商:Microsemi Corporation 功能描述:IC DGTL SWITCH F8KDX 196PBGA
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MT90880B 制造商:ZARLINK 制造商全稱(chēng):Zarlink Semiconductor Inc 功能描述:TDM to Packet Processors
MT90880B/IG 制造商:ZARLINK 制造商全稱(chēng):Zarlink Semiconductor Inc 功能描述:TDM to Packet Processors
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