參數(shù)資料
型號： MT90869AG
廠商： ZARLINK SEMICONDUCTOR INC
元件分類： 路由/交換
英文描述： Flexible 16K Digital Switch (F16kDX)
中文描述： TELECOM, DIGITAL TIME SWITCH, PBGA272
封裝： 27 X 27 MM, 1.27 MM PITCH, PLASTIC, MS-034-BAL-2, BGA-272
文件頁數(shù)： 39/76頁
文件大?。?/td> 1316K
代理商： MT90869AG
Data Sheet
MT90869
39
Zarlink Semiconductor Inc.
Table 12 - LCM Bits for Backplane(32Mb/s Mode)-to-Local Switching
12.4
Backplane Connection Memory Bit Definition
The Backplane Connection Memory (BCM) has 8,192 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 13 for Local-to- Backplane(Non-32MB/s Mode) and Backplane-
to-Backplane(Non-32MB/s Mode) connections, and in Table 14, for Local-to-Backplane(32MB/s Mode) and
Backplane-to-Backplane(32Mb/s Mode) connections.
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 (BSTo0-31) 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.
12-9
LSAB3-0
Source Stream Address Bits.
The binary value of these 4 bits represents the input stream number.
Ignored when LMM is set HIGH.
8-0
LCAB8-0
Channel Address Bits.
The binary value of these 9 bits represents the input channel number, when LMM is LOW.
Bits LCAB7-0 transmitted as data when LMM is set HIGH.
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.
Table 13 - BCM Bits for Local-to-Backplane and Backplane-to-Backplane Switching (Non-32Mb/s
Mode)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MT90869AG2 制造商:Microsemi Corporation 功能描述:PB FREE 8K X 8K DIGITAL SWITCH 制造商:Microsemi Corporation 功能描述:SWIT FABRIC 16KX16K/8KX8K 1.8V/3.3V 272BGA - Trays 制造商:MICROSEMI CONSUMER MEDICAL PRODUCT GROUP 功能描述:IC DGTL SWITCH F16KDX 272PBGA 制造商:Microsemi Corporation 功能描述:IC DGTL SWITCH F16KDX 272PBGA
MT90870 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Flexible 12 k Digital Switch (F12kDX)
MT90870AG 制造商:Microsemi Corporation 功能描述:SWIT FABRIC 12K X 12K/8K X 4K 1.8V/3.3V 272BGA - Trays
MT90870AG2 制造商:Microsemi Corporation 功能描述:SWIT FABRIC 12K X 12K/8K X 4K 1.8V/3.3V 272BGA - Trays
MT90871 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Flexible 8K Digital Switch (F8KDX)
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