參數(shù)資料
型號(hào)： MT8982AS
廠商： Mitel Networks Corporation
英文描述： ISO-CMOS ST-BUS⑩ FAMILY Small Digital Switch (MiniDX)
中文描述： 異意法半導(dǎo)體的CMOS總線⑩家庭小型數(shù)字交換機(jī)（MiniDX）
文件頁(yè)數(shù)： 6/14頁(yè)
文件大小： 223K
代理商： MT8982AS
MT8982
ISO-CMOS
2-36
Figure 4 - Internal Memory Access Windows
Channel 31
Channel 0
C4
F0i
Microport
Mode
Serial Port Mode
Wr DM
Link 0
Ch 31
Bit 0
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Wr DM
Link 1
Ch 31
Wr CM
Link 0
Ch 31
Rd DM
Link 1
Ch 1
Rd CM
Link 1
Ch 1
Rd DM
Link 0
Ch 1
Rd CM
Link 0
Ch 1
Wr CM
Link 1
Ch 31
μ
P
μ
P
channels and is not dependent on the input and
output streams. The delays are given in Table 3.
The maximum delay is one frame plus one channel;
the minimum delay is two channels.
Table 3. Input Channel to Output Channel Delay
Times
The following delays apply to writing data to the
Connect Memory in message mode. For stream 0,
data must be written to a Connect Memory location
at least one timeslot before the corresponding output
channel or the output data will be delayed by one
frame. For stream 1, data must be written at least
two timeslots before the output channel or the output
data will be delayed by one frame.
Device Programming
Microport Mode
In
programmed and read using microcycles which
consist of a command/address byte followed by a
data byte.
serial
microport
mode,
the
MT8982
is
The Command/Address Byte is shown in Table 1.
Bits 0 and 1 are the command bits (Cmd0-1), and
are used to indicate the type of microcycle access.
The microcontroller can read the Data Memory, read
or write the Connect Memory, and set per-channel
message or connection mode. Bits 2 to 6 of the
command/address byte (Ch0-Ch4) correlate to a
channel on a TDM stream (0-31). Bit 7 (STREAM)
correlates to stream 0 or stream 1. These bits
address the corresponding Data Memory or Connect
Memory location.
The
command/address byte are as follows:
microcycle
operations
selected
by
the
Read Connect Memory (Cmd0-1: 0,0)
Bits 0 to 7 of the addressed Connect Memory
location will be transmitted to the microcontroller
in the following data byte. Depending on what
the last Connect Memory write mode was, the
data transmitted could be a message byte or a
Connection Mode data byte.
Input
Channel
Output
Channel
Delay
n
m = n, n+1
m- n + 32 channels
n
m > n+1
m- n channels
n
m < n
32- (n-m) channels
相關(guān)PDF資料
PDF描述
MT8982-1 ISO-CMOS ST-BUS⑩ FAMILY Small Digital Switch (MiniDX)
MT8982 Small Digital Switch (MiniDX)(小數(shù)字開關(guān)（無(wú)阻塞的CMOS定時(shí)開關(guān)）)
MT8985 Enhanced Digital Switch(加強(qiáng)型數(shù)字開關(guān))
MT8986 Multiple Rate Digital Switch(多速率數(shù)字開關(guān))
MT8992BC Digital Telephone with HDLC
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MT8985 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Enhanced Digital Switch
MT8985AE 制造商:MITEL 功能描述:
MT8985AE1 制造商:Microsemi Corporation 功能描述:SWIT FABRIC 256 X 256 16.384MBPS 5V 40PDIP - Rail/Tube 制造商:Microsemi Corporation 功能描述:PB FREE ENHANCED DIGITAL SWITCH 制造商:Zarlink Semiconductor Inc 功能描述:PB FREE ENHANCED DIGITAL SWITCH 制造商:Zarlink Semiconductor Inc 功能描述:SWIT FABRIC 256 X 256 16.384MBPS 5V 40PDIP - Rail/Tube 制造商:Microsemi 功能描述:SWIT FABRIC 256 X 256 16.384MBPS 5V 40PDIP
MT8985AL 制造商:Microsemi Corporation 功能描述:SWIT FABRIC 256 X 256 16.384MBPS 5V 44MQFP - Trays 制造商:Zarlink Semiconductor Inc 功能描述:SWIT FABRIC 256 X 256 16.384MBPS 5V 44MQFP - Trays
MT8985AL1 制造商:Microsemi Corporation 功能描述:SWIT FABRIC 256 X 256 16.384MBPS 5V 44MQFP - Trays
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