參數(shù)資料
型號： MT9076AB
廠商： Mitel Networks Corporation
英文描述： T1/E1/J1 3.3V Single Chip Transceiver
中文描述： T1/E1/J1收發(fā)3.3V的單芯片收發(fā)器
文件頁數(shù)： 35/160頁
文件大?。?/td> 416K
代理商： MT9076AB
Preliminary Information
MT9076
31
4.2
Control and Status Register Access
The controlling microprocessor gains access to specific registers of the MT9076 through a two step process.
First, writing to the Command/Address Register (CAR) selects one of the 15 pages of control and status
registers (CAR address: AC4 = 0, AC3-AC0 = don't care, CAR data D7 - D0 = page number). Second, each
page has a maximum of 16 registers that are addressed on a read or write to a non-CAR address (non-CAR:
address AC4 = 1, AC3-AC0 = register address, D7-D0 = data). Once a page of memory is selected, it is only
necessary to write to the CAR when a different page is to be accessed. See the AC Electrical Characteristics
section.
Please note that for microprocessors with read/write cycles less than 200 ns, a wait state or a dummy operation
(for C programming) between two successive read/write operations to the HDLC FIFO is required.
Table 13 associates the MT9076 control and status pages with access and page descriptions.
4.3
Identification Code
The MT9076 shall be identified by the code 01111000, read from the identification code status register (page
03H, address 1FH).
4.4
ST-BUS Streams
In T1 mode, there is one control and one status ST-BUS stream that can be used to program / access channel
associated signaling nibbles. CSTo contains the received channel associated signaling bits, and for those
channels whose Per Time Slot Control word bit 1 "RPSIG" is set low, CSTi is used to control the transmit
channel associated signaling. The DSTi and DSTo streams contain the transmit and receive voice and digital
data. Only 24 of the 32 ST-BUS channels are used for each of DSTi, DSTo, CSTi and CSTo. In each case
individual channel mapping is as illustrated in Table 6, “ST-BUS vs. DS1 to Channel Relationship(T1),” on
page 25.
In E1 mode, ST-BUS streams can also be used to access channel associated signaling nibbles. CSTo contains
the received channel associated signaling bits (e.g., ITU-T R1 and R2 signaling) ,and for those channels whose
Page Address D
7
- D
0
00000001 (01H)
00000010 (02H)
00000011 (03H)
00000100 (04H)
00000101 (05H)
00000110 (06H)
00000111 (07H)
00001000 (08H)
00001001 (09H)
00001010 (0AH)
00001011 (0BH)
00001011 (0CH)
00001011 (0DH)
00001011 (0EH)
00001011 (0FH)
Register Description
Processor Access
ST-BUS Access
Master
Control
R/W
R/W
R
R/W
R/W
R/W
- - -
Master
Status
- - -
Per Channel Transmit signaling
Per Channel Transmit signaling
Per Time Slot Control
Per Time Slot Control
Per Channel Receive signaling
Per Channel Receive signaling
HDLC0 Control and Status
HDLC1 Control and Status
HDLC2 Control and Status
Tx National Bit Buffer
Rx National Bit Buffer
CSTi
CSTi
- - -
- - -
CSTo
CSTo
- -
---
---
---
---
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R
Table 13 - Page Summary
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MT9076AP 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:T1/E1/J1 3.3V Single Chip Transceiver
MT9076B 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:T1/E1/J1 3.3 V Single Chip Transceiver
MT9076BB 制造商:Zarlink Semiconductor Inc 功能描述:FRAMER E1/J1/T1 3.3V 80LQFP - Trays
MT9076BB1 制造商:Zarlink Semiconductor Inc 功能描述:FRAMER E1/J1/T1 3.3V 80LQFP - Trays
MT9076BP 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:T1/E1/J1 3.3 V Single Chip Transceiver
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