- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄384758 > MT88L89 (Mitel Networks Corporation) 3V Integrated DTMF Transceiver with Adaptive Micro Interface(3V 集成雙音多頻信號（DTMF）接收器（帶自適應微接口）) PDF資料下載
參數(shù)資料
| 型號： | MT88L89 |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | 3V Integrated DTMF Transceiver with Adaptive Micro Interface(3V 集成雙音多頻信號（DTMF）接收器（帶自適應微接口）) |
| 中文描述： | 3V的雙音多頻收發(fā)器集成自適應微型接口（3V的集成雙音多頻信號（DTMF）的接收器（帶自適應微接口）） |
| 文件頁數(shù)： | 14/28頁 |
| 文件大?。?/td> | 210K |
| 代理商： | MT88L89 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁當前第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁
MT88L89
4-136
Figure 15 - Application Notes
INITIALIZATION PROCEDURE
A software reset must be included at the beginning of all programs to initialize the control registers after
power up.
Description:
Motorola Intel
R/W
1
0
0
0
0
1
Data
b2
X
0
0
0
0
X
RS0
1
1
1
1
1
1
WR RD
1
0
0
0
0
1
b3
X
0
0
1
0
X
b1
X
0
0
0
0
X
b0
X
0
0
0
0
X
1) Read Status Register
2) Write to Control Register
3) Write to Control Register
4) Write to Control Register
5) Write to Control Register
6) Read Status Register
0
1
1
1
1
0
TYPICAL CONTROL SEQUENCE FOR BURST MODE APPLICATIONS
Transmit DTMF tones of 50 ms burst/50 ms pause and Receive DTMF Tones.
Sequence:
RS0
1
R/W
0
WR RD
0
b3
1
b2
1
b1
0
b0
1
1) Write to Control Register A
(tone out, DTMF, IRQ, Select Control Register B)
2) Write to Control Register B
(burst mode)
3) Write to Transmit Data Register
(send a digit 7)
4) Wait for an Interrupt or Poll Status Register
5) Read the Status Register
1
1
0
0
1
0
0
0
0
0
0
0
1
0
1
1
1
1
1
1
0
X
X
X
X
-if bit 1 is set, the Tx is ready for the next tone, in which case...
Write to Transmit Register
(send a digit 5)
0
0
0
1
0
1
0
1
-if bit 2 is set, a DTMF tone has been received, in which case....
Read the Receive Data Register
0
1
1
0
X
X
X
X
-if both bits are set...
Read the Receive Data Register
Write to Transmit Data Register
0
0
1
0
1
0
0
1
X
0
X
1
X
0
X
1
NOTE: IN THE TX BURST MODE, STATUS REGISTER BIT 1 WILL NOT BE SET UNTIL 100 ms (
±
2 ms) AFTER THE DATA IS
WRITTEN TO THE TX DATA REGISTER. IN EXTENDED BURST MODE THIS TIME WILL BE DOUBLED TO 200 ms (
±
4 ms)
相關PDF資料 |
PDF描述 |
|---|---|
| MT88V32 | 8 x 4 High Performance Video Switch Array(8 x 4 高性能數(shù)字可編程正交開關（用于控制寬帶視頻信號）) |
| MT8910-1 | CMOS ST-BUS⑩ FAMILY Digital Subscriber Line Interface Circuit |
| MT8910-1AC | CMOS ST-BUS⑩ FAMILY Digital Subscriber Line Interface Circuit |
| MT8910-1AP | CMOS ST-BUS⑩ FAMILY Digital Subscriber Line Interface Circuit |
| MT8920 | ISO-CMOS ST-BUS⑩ FAMILY ST-BUS Parallel Access Circuit |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MT88L89AC | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:3V Integrated DTMFTransceiver with Adaptive Micro Interface |
| MT88L89AE | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:3V Integrated DTMFTransceiver with Adaptive Micro Interface |
| MT88L89AN | 制造商:Microsemi Corporation 功能描述: |
| MT88L89AN1 | 制造商:Microsemi Corporation 功能描述:DTMF TXRX 3.58MHZ CMOS 3V 24SSOP - Rail/Tube |
| MT88L89ANR1 | 制造商:Microsemi Corporation 功能描述:DTMF TXRX 3.58MHZ CMOS 3V 24SSOP - Tape and Reel 制造商:MICROSEMI CONSUMER MEDICAL PRODUCT GROUP 功能描述:IC TXRX DTMF 3V 24SSOP 制造商:Microsemi Corporation 功能描述:IC TXRX DTMF 3V 24SSOP |
發(fā)布緊急采購，3分鐘左右您將得到回復。