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Rev. 1.4
7.7.7. Call—Automatic Pulse Dial
Table 154 lists the commands that occur after the configuration defined in Table 149.
7.7.8. Answer
A ring event will prompt the user to press the speakerphone button. This will generate a SP Button On Event and
the Speakerphone Configuration procedure defined in Table 149 on page 231 should be used to answer the call.
For ring detection and local ring tone/melody generation, see "7.6.2. TAM Hands-Free—Idle".
7.7.9. Handset Transition
For a SP Button Off Event (Handset Off-Hook), the voice driver should use the command sequence in Table 155 to
return to the Handset mode. Note the voice driver is responsible for tracking the handset hook switch state.
Table 154. Speakerphone Automatic Pulse Dial
Host to Modem
Commands / Data
Modem to Host Result
Codes/Data
Local Modem Actions
ATDP102
OK
Perform automatic pulse dial of 102. Modem will return
OK. The user will not receive <DLE> events for dial
tone, ring-back, busy, and quiet since the detectors are
disabled. See Table 136 on page 211 for details on
active detectors.
Table 155. Speakerphone to Handset Transition
Host to Modem Commands / Data
Modem to Host
Result Codes/
Data
Local Modem Actions
AT:U199|A
OK
Mute the microphone and speaker paths to
the codec.
AT:U72,0110
OK
Configure Si3000 Register 1:
Enable speaker driver
Disable line output driver
Disable telephone instrument driver
Enable MBIAS output
AT:U72,05B3
OK
Configure Si3000 Register 5:
10 dB Line In gain
Mute Line In
20 dB MIC input gain
Enable MIC input
Mute telephone instrument input
Enable IIR filter
AT:U72,065C
OK
Configure Si3000 Register 6:
0 dB RX PGA gain
Disable Line Out
Disable telephone instrument output
AT:U72,075E
OK
Configure Si3000 Register 7:
0 dB RX PGA gain
Enable SPKRL
Mute SPKRR
Содержание Si2404
Страница 2: ...AN93 2 Rev 1 4 ...
Страница 27: ...AN93 Rev 1 4 27 Figure 7 Parallel Interface Read Timing Figure 8 Parallel Interface Write Timing ...
Страница 200: ...AN93 200 Rev 1 4 Figure 31 TAM Handset and Speakerphone Voice Paths ...
Страница 201: ...AN93 Rev 1 4 201 Figure 32 Si3000 Codec Gain and Signal Selection Options ...
Страница 290: ...AN93 290 Rev 1 4 Figure 57 256 Band Spectral Display Figure 58 2048 Band Spectral Display ...
Страница 305: ...AN93 Rev 1 4 305 Figure 76 Parallel or SPI Port Interrupt Service Flowchart ...