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參數(shù)資料
| 型號： | MT9075B |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | E1 Single Chip Transceiver |
| 中文描述： | 素E1單芯片收發(fā)器 |
| 文件頁數(shù)： | 15/78頁 |
| 文件大?。?/td> | 347K |
| 代理商： | MT9075B |
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Preliminary Information
MT9075B
15
used to control the transmit channel associated
signalling. The DSTi and DSTo streams contain the
transmit and receive voice and digital data.
Identification Code
The MT9075B shall be identified by the code
10101010, read from the identification code status
register (page 03H, address 1FH).
Reset Operation (Initialization)
The MT9075B can be reset using the hardware
RESET pin (pin 11 in PLCC, pin 84 in MQFP, see pin
description for external reset circuit requirements) or
the software reset bit RST (page 01H, address 11H).
When the device emerges from its reset state it will
begin to function with the default settings described
in Table 6. A reset operation takes 1 full frame (125
us) to complete.
Table 6 - Reset Status
Transmit AIS Operation
The pin TAIS (Transmit AIS, pin 60 in PLCC, pin 48 in
MQFP) allows an all ones signal to be transmitted
from the point of power-up without the need to write
any control registers. During this time the IRQ pin is
tristated. After the interface has been initialized
normal operation can take place by making TAIS
high.
National Bit Buffers
Table 7 shows the contents of the transmit and
receive Frame Alignment Signals (FAS) and Non-
frame Alignment Signals (NFAS) of time slot zero of
a PCM 30 signal. Even numbered frames (CRC
Frame # 0, 2, 4,...) are FASs and odd numbered
frames (CRC Frame # 1, 3, 5,...) are NFASs. The bits
of each channel are numbered 1 to 8, with bit 1 being
the most significant and bit 8 the least significant.
Table 7 - FAS and NFAS Structure
Table 8 illustrates the organization of the MT9075B
transmit and receive national bit buffers. Each row is
an addressable byte of the MT9075B national bit
buffer, and each column contains the national bits of
an odd numbered frame of each CRC-4 Multiframe.
The transmit and receive national bit buffers are
located at page 0DH and 0EH respectively.
Function
Mode
Loopbacks
Transmit FAS
Transmit non-FAS
Transmit MFAS (CAS)
Data Link
CRC Interworking
Signalling
ABCD Bit Debounce
Interrupts
Status
Termination
Deactivated
C
n
0011011
1/S
n
1111111
00001111
Deactivated
Activated
CAS Registers
Deactivated
Interrupt Mask Word
Zero unmasked, all
others masked;
interrupts not suspended
Signalling Multiframe
Deactivated
Deactivated
Cleared
All locations set to 54H
All locations cleared
RxMF Output
Error Insertion
HDLCs
Counters
Tx Message Buffer
Per Time Slot Control
Buffer
CRC
CRC
Frame/
Type
PCM 30 Channel Zero
1
2
3
4
5
6
7
8
S
0/FAS
C
1
0
0
1
1
0
1
1
1/NFAS
0
1
A
S
a4
S
a5
S
a6
S
a7
S
a8
2/FAS
C
2
0
0
1
1
0
1
1
3/NFAS
0
1
A
S
a4
S
a5
S
a6
S
a7
S
a8
4/FAS
C
3
0
0
1
1
0
1
1
5/NFAS
1
1
A
S
a4
S
a5
S
a6
S
a7
S
a8
6/FAS
C
4
0
0
1
1
0
1
1
7/NFAS
0
1
A
S
a4
S
a5
S
a6
S
a7
S
a8
8/FAS
C
1
0
0
1
1
0
1
1
9/NFAS
1
1
A
S
a4
S
a5
S
a6
S
a7
S
a8
10/FAS
C
2
0
0
1
1
0
1
1
11/NFAS
1
1
A
S
a4
S
a5
S
a6
S
a7
S
a8
12/FAS
C
3
0
0
1
1
0
1
1
13/NFAS
E
1
1
A
S
a4
S
a5
S
a6
S
a7
S
a8
14/FAS
C
4
0
0
1
1
0
1
1
15/NFAS
E
2
1
A
S
a4
S
a5
S
a6
S
a7
S
a8
indicates position of CRC-4 multiframe alignment signa
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MT9075B | E1 Single Chip Transceiver(E1單片收發(fā)器) |
| MT9075 | E1 Single Chip Transceiver |
| MT9075A | E1 Single Chip Transceiver |
| MT9075AL | E1 Single Chip Transceiver |
| MT9075AP | E1 Single Chip Transceiver |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MT9075B-1 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:E1 Single Chip Transceiver |
| MT9075BL | 制造商:Microsemi Corporation 功能描述:FRAMER E1 5V 100MQFP - Trays |
| MT9075BL1 | 制造商:Microsemi Corporation 功能描述:FRAMER E1 5V 100MQFP - Trays 制造商:MICROSEMI CONSUMER MEDICAL PRODUCT GROUP 功能描述:IC TXRX SGL E1 W/LIU 100MQFP 制造商:Microsemi Corporation 功能描述:IC TXRX SGL E1 W/LIU 100MQFP |
| MT9075BP | 制造商:Microsemi Corporation 功能描述: |
| MT9075BP1 | 制造商:Microsemi Corporation 功能描述:Single Chip Transceiver 1TX 1RX 2.048Mbps 68-Pin PLCC Tube 制造商:Microsemi Corporation 功能描述:FRAMER E1 5V 68PLCC - Rail/Tube 制造商:Microsemi Corporation 功能描述:PB FREE E1 SINGLE CHIP TRANSCEIVER 制造商:MICROSEMI CONSUMER MEDICAL PRODUCT GROUP 功能描述:IC TXRX SGL E1 W/LIU 68PLCC 制造商:Microsemi Corporation 功能描述:IC TXRX SGL E1 W/LIU 68PLCC |
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