- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄10906 > SI2439-A-GM (Silicon Laboratories Inc)IC ISOMODEM 33.6KBPS 38-QFN PDF資料下載
參數(shù)資料
| 型號： | SI2439-A-GM |
| 廠商： | Silicon Laboratories Inc |
| 文件頁數(shù)： | 47/70頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ISOMODEM 33.6KBPS 38-QFN |
| 標準包裝： | 364 |
| 系列： | * |
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頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁當前第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁
Si2494/39
Rev. 1.0
51
5. S-Registers
The S command allows reading (Sn?) or writing (Sn = x) the S-registers. The S-registers store values for functions
that typically are rarely changed, such as timers or counters, and the ASCII values of control characters, such as
carriage return. Table 15 summarizes the S-register set.
Table 15. S-Register Description
Definition
S-Register
(Decimal)
Function
Default
(Decimal)
Range
Units
0
Automatic answer—Number of rings the Si2494/39
must detect before answering a call. 0 disables auto
answer.
0
0–255
Rings
1
Ring counter.
0
0–255
Rings
2
ESC code character.
43 (+)
0–255
ASCII
3
Carriage return character.
13 (CR)
0–255
ASCII
4
Linefeed character.
10 (LF)
0–255
ASCII
5
Backspace character.
08 (BS)
0–255
ASCII
6
Dial tone wait timer—Number of seconds the Si2494/
39 waits before blind dialing. Only applicable if blind
dialing is enabled (X0, X1, X3).
02
0–255
seconds
7
Carrier wait timer—Number of seconds the Si2494/39
waits for carrier before timing out. This register also
sets the number of seconds the modem waits for ring-
back when originating a call before hanging up. This
register also sets the number of seconds the answer
tone will continue while using the AT
*Y2A command.
80
0–255
seconds
8
Dial pause timer for , and < dial command modifiers.
02
0–255
seconds
9
Carrier presence timer—Time after a loss of carrier
that a carrier must be detected before reactivating
DCD. S9 is referred to as “carrier loss debounce time.”
06
1–255
0.1 second
10
Carrier loss timer—Time the carrier must be lost before
the Si2494/39 disconnects. Setting 255 disables dis-
connect entirely. If S10 is less than S9, even a momen-
tary loss of carrier causes a disconnect.
14
1–255
0.1 second
12
Escape code guard timer—Minimum guard time
required before and after “+++” for the Si2494/39 to
recognize a valid escape sequence.
50
1–255
0.02 second
14
Wait for dial tone delay value (in relation to the W dial
modifier). Starts when “W” is executed in the dial
string.
12
0–255
seconds
相關PDF資料 |
PDF描述 |
|---|---|
| PIC16LC72A-04/SS | IC MCU OTP 2KX14 A/D PWM 28SSOP |
| PIC16C72A/JW | IC MCU OTP 2KX14 A/D PWM 28CDIP |
| PIC16C65B/JW | IC MCU EPROM 4KX14 PWM 40CDIP |
| SI2439-A-FM | IC ISOMODEM 33.6KBPS 38-QFN |
| PIC16C62B/JW | IC MCU EPROM 2KX14 PWM 28CDIP |
相關代理商/技術(shù)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 |
發(fā)布緊急采購，3分鐘左右您將得到回復。