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ST75C540 数据表(PDF) 29 Page - STMicroelectronics

部件名 ST75C540
功能描述  SUPER INTEGRATED DEVICESWITH DSP, AFE & MEMORIES FORTELEPHONY,MODEM, FAXOVERINTERNET& POTSLINES
PDF  84 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

ST75C540 数据表(HTML) 29 Page - STMicroelectronics

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CONF
Configure for Operations
CONF
Opcode :
20
00
1
00000
Synopsis
CONF allows the complete definition of the ST75C530/540 operation, including the mode of
operation (Tone, FAX Transmit, Voice Transmit, Voice Receive, DTMF Receiver, ...) and the
Modem or Vocoder Parameters (Standard, speed, ...). According with the 4 first bits of the
CONF Parameter the ST75C530/540 is put into the following mode of operation.
CONF_
OPER
Mode
Detectors
Tone
(2) Tone (3) DTMF Ring VAD V.21 Flag CPT (5) Answ (6)
0000*
0001
0010
0100
1000
1001
1100
1111
Other
TONE
TONECID(1)
DECODER
TRANSPARENT
CODER
ROOM-MONITOR
HANDSET/HANDSFREE
MODEM
Reserved
16
6
0
6
0
0
0
0
4
4
4
4
4
4
2
4
(7)
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
(4)
Yes
Yes
Yes
No
Yes
No
No
No
No
No
No
No
Yes
No
No
No
Yes
Yes
No
No
No
No
No
Yes
Yes
Yes
No
Yes
No
No
No
Yes
(4)
Yes
No
No
Yes
No
No
No
No
Notes :
1. This mode includes V.23/Bell202 FSK Demodulator and UART.
2. This primary Tone Detectors allows Detection of signal up to 3.3kHz. (Sampling Rate 7.2kHz).
3. Thissecondary ToneDetectorsallowsDetectionofsignalupto1.8kHz(withSamplingRate4.8kHz) or upto3.3kHz(withSamplingRate9.6kHz).
4. The DTMF detector and Call Progress Tone detector (CPT) are available only for V.21 Channel 2.
5. STA_CPT0, STA_CPT1 and STA_CPT10 in STATUS0.
6. STA_CCITT and STA_AT in STATUS1.
7. Not available in V.32bis/V.32.
VII - COMMAND SET DESCRIPTION (continued)
ST75C530 - ST75C540
29/84



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