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參數(shù)資料
| 型號： | MT90812 |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | Integrated Digital Switch (IDX)(集成數(shù)字開關(guān)) |
| 中文描述： | 綜合數(shù)字交換機（IDX的）（集成數(shù)字開關(guān)） |
| 文件頁數(shù)： | 62/105頁 |
| 文件大?。?/td> | 334K |
| 代理商： | MT90812 |
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MT90812
Advance Information
58
22.7
Ringer and FSK Control Register (RFC)
The Ringer and FSK Control register (RFC) controls the Ringing Source and FSK Transmitter.
The Ringer and FSK control register is configured as follows:
The Ringer and FSK Control Register (RFC) is used to select the type of interrupt, the idle state, the ‘mark’ and
‘space’ frequency standard, and to turn on or off the transmitter. The idle state of continuous ‘mark’ or
continuous ‘space’ or a ‘channel seizure’ signal of alternating ones and zero’s can be selected. Changing S1,
S0 bits will change the idle state on the next bit boundary. At 1200 baud, one bit corresponds to 6
2
/
3
frames.
Read/Write Address is: 006
H
Reset Value is: 00
H
Bit
Name
Description
7
RE
Ringer Enable bit
.
6-5
F1,F0
Selects the frequency of the square wave output of the Ringing Generator
. The
Ringer outputs are the R+ and R- pins.
00 = 16 Hz square wave
01 = 20 Hz square wave
10 = 25 Hz square wave
11 = 50 Hz square wave
4
FIS
FSK Interrupt Select
. 0 = interrupt generated when the TX FIFO is empty.
1= interrupt generated at the end of transmission.
2-3
S1, S0
00 = Idle state is continuous ‘space’ (logic zero).
01 = Idle state is continuous ‘mark’ (logic one).
10 = Turn on channel seizure signal.
11 = unused.
1
FEN
FEN=0 disables the FSK Transmitter and clears the FSK FIFO
. Writing to FSK FIFO
while FEN=0 will have no effect.
When 1 the FSK transmitter is enabled, and the FSK transmit memory can be written to.
When the memory is empty, the idle state set by bits S1-0, is output until the transmit
memory is reloaded or the transmitter is turned off.
0
FMS
0 = Mark and Space frequencies of 1200 Hz and 2200 Hz corresponding to Bell 202
standard.
1 = Mark and Space frequencies of 1300 Hz and 2100 Hz corresponding to CCITT V.23
standard.
7
6
5
4
3
2
1
0
FMS
FEN
S0
FIS
F0
S1
F1
RE
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MT90812AL | 制造商:Microsemi Corporation 功能描述:SWIT FABRIC 192 X 192 16.384MBPS 5V 64MQFP - Trays 制造商:Zarlink Semiconductor Inc 功能描述:SWIT FABRIC 192 X 192 16.384MBPS 5V 64MQFP - Trays |
| MT90812AL1 | 制造商:Microsemi Corporation 功能描述:SWIT FABRIC 192 X 192 16.384MBPS 5V 64MQFP - Trays 制造商:Microsemi Corporation 功能描述:PB FREE INTEGRATED DIGITAL SWITCH |
| MT90812AP | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Integrated Digital Switch (IDX) |
| MT90812AP1 | 制造商:Zarlink Semiconductor Inc 功能描述:SWIT FABRIC 192 X 192 16.384MBPS 5V 68PLCC /BAKE/DRYPACK - Rail/Tube 制造商:Zarlink Semiconductor Inc 功能描述:INTEGRATED DIGITAL SWCH |
| MT90812APR | 制造商:Microsemi Corporation 功能描述:SWIT FABRIC 192 X 192/64 X 64 1.048GBPS 5V 68PLCC - Tape and Reel |
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