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參數(shù)資料
| 型號： | SI2439-A-GM |
| 廠商： | Silicon Laboratories Inc |
| 文件頁數(shù)： | 48/70頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ISOMODEM 33.6KBPS 38-QFN |
| 標準包裝： | 364 |
| 系列： | * |
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Si2494/39
52
Rev. 1.0
24
Sleep Inactivity Time—Sets the time that the modem
operates in normal power mode with no activity on the
serial port, parallel port, or telephone line before enter-
ing low-power sleep mode. This feature is disabled if
the timer is set to 0.
0
0–255
seconds
30
Disconnect Activity Timer—Sets the length of time that
the modem stays online before disconnecting with no
activity on the serial port, parallel port, or telephone
line (Ring, hookswitch flash, or caller ID). This feature
is disabled if set to 0.
0
0–255
minutes
38
Hang Up Delay Time—Maximum delay between
receipt of ATH0 command and hang up. If time out
occurs before all data can be sent, the NO CARRIER
(3) result code is sent (operates in V.42 mode only).
“OK” response is sent if all data is transmitted before
timeout. S38 = 255 disables timeout and modem dis-
connects only if data is successfully sent or carrier is
lost.
20
0–255
seconds
40
Data Pattern—Data pattern generated during &T4 and
&T5 transmit tests.
0 = All spaces (0s)
1 = All marks (1s)
2 = Random data
00–2
41
V.34 symbol rate - Symbol rate for V.34 when using the
&T4 and &T5 commands.
0 = 2400
symbols/second
1 = 2743
symbols/second
2 = 2800
symbols/second
3 = 3000
symbols/second
4 = 3200
symbols/second
5 = 3429
symbols/second
A valid combination of symbol rate (S41) and data rate
(&G) must be selected.
Symbol Rate
Allowable Data Rates
2400
2400–21600
2743
4800–26400
2800
4800–26400
3000
4800–28800
3200
4800–31200
3429
4800–33600
00–5
Table 15. S-Register Description (Continued)
Definition
S-Register
(Decimal)
Function
Default
(Decimal)
Range
Units
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| SI2439-A-GMR | 制造商:Silicon Laboratories Inc 功能描述:33.6 KBPS ISOMODEM + VOICE - Tape and Reel 制造商:Silicon Laboratories Inc 功能描述:IC ISOMODEM 33.6KBPS 38-QFN |
| SI2456 | 制造商:SILABS 制造商全稱:SILABS 功能描述:V.90, V.34, V.32BIS ISOMODEM⑩ WITH INTEGRATED GLOBAL DAA |
| SI2456-FT | 制造商:Silicon Laboratories Inc 功能描述:MODEM CHIP CHIPSET ISOMODEM 56KBPS 24TSSOP - Rail/Tube |
| SI2456-FT/REV F | 制造商:Silicon Laboratories Inc 功能描述:NOT RECOMMENDED FOR NEW DESIGNS, SEE SI2457-FT - Rail/Tube |
| Si2456-FTR | 制造商:Silicon Laboratories Inc 功能描述:MODEM CHIP CHIPSET ISOMODEM 56KBPS 24TSSOP - Tape and Reel |
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