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ST75C520 数据表(PDF) 26 Page - STMicroelectronics

部件名 ST75C520
功能描述  HIGH SPEED FAX MODEM DATA PUMP
PDF  45 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

ST75C520 数据表(HTML) 26 Page - STMicroelectronics

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TGEN
Enable/disable Tone Generators
TGEN
Opcode:
0D
00001101
Synopsis
TGEN causes the ST75C520 to enable or disable the four tone generators.
Parameters
Field
Byte
Pos.
Value
Definition
TONE_0_ENA
1
0
0*
1
Generator #0 disabled
Generator #0 enabled
TONE_1_ENA
1
1
0*
1
Generator #1 disabled
Generator #1 enabled
TONE_2_ENA
1
2
0*
1
Generator #2 disabled
Generator #2 enabled
TONE_3_ENA
1
3
0*
1
Generator #3 disabled
Generator #3 enabled
TONE
Predefined Tones
TONE
Opcode:
0C
00001100
Synopsis
TONE programs the tone generators for the predefined tones. The tone generators #0 and
eventually #1 are reprogrammed with this command. Eventually the tone generator #0
and #1 are enabled. Using a value not in the following table will disable tone generator #0
and #1.
Parameters
Field
Byte
Pos.
Value
Definition
TONE_SELECT
1
5..0
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
10
11
12
13
DTMF 0 (941 & 1336Hz)
DTMF 1 (697 & 1209Hz)
DTMF 2 (697 & 1336Hz)
DTMF 3 (697 & 1477Hz)
DTMF 4 (770 & 1209Hz)
DTMF 5 (770 & 1336Hz)
DTMF 6 (770 & 1477Hz)
DTMF 7 (852 & 1209Hz)
DTMF 8 (852 & 1336Hz)
DTMF 9 (852 & 1477Hz)
DTMF A (697 & 1633Hz)
DTMF B (770 & 1633Hz)
DTMF C (852 & 1633Hz)
DTMF D (941 & 1633Hz)
DTMF * (941 & 1209Hz)
DTMF # (941 & 1477Hz)
Answer tone (2100Hz)
Tone (1650Hz)
Answer tone (2225Hz)
Tone (1300Hz)
XMIT
Start/stop Transmission
XMIT
Opcode:
01
00000001
Synopsis
XMIT start or stop the transmission of the Parallel Transmit Data. This command work only
if the Parallel Transmit Data mode has been selected with a SERIAL command.
Parameters
Field
Byte
Pos.
Value
Definition
TX_START
1
0
0*
1
Stop transmission
Start transmission
ST75C520
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