SI3015-F-FS View Datasheet(PDF) - Silicon Laboratories
Part Name
Description
Manufacturer
SI3015-F-FS Datasheet PDF : 68 Pages
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Si2403
U7A GENA
Bit D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
Name
DOP ADD
HDLC FAST
Type
R/W R/W
R/W R/W
Reset settings = 0x0000
Bit Name
Function
15:8 Reserved Read returns to zero.
7
DOP Dial or Pulse.
0 = Normal ATDTW operation
1 = Use ATDTW for Pulse/Tone Dial Detection (see also ATDW command)
6
ADD Adaptive Dialing.
1 = Enable
0 = Disable
Attempt DTMF dial, then fall back to pulse dialing if unsuccessful. First digit is dialed as
DTMF. If a dialtone is still present after two seconds, the Si2403 will redial the first digit and
remaining digits as pulse. If a dialtone is not present after two seconds, the Si2403 will dial
the remaining digits as DTMF.
5:2 Reserved Read returns to zero.
1
HDLC Synchronous Mode.*
0 = Normal asynchronous mode.
1 = Transparent HDLC mode.
0
FAST Fast Connect.*
0 = Normal modem handshake timing per ITU/Bellcore standards.
1 = Fast connect modem handshake timing.
*Note: When V22HD, HDLC, or FAST bits are set, \N0 (wire mode) must be used.
54
Rev. 1.2
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