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ST75C540 数据表(PDF) 40 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) 40 Page - STMicroelectronics

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TDWC
Tone Detector Write Coefficient
TDWC
Opcode:
1C
000
11100
Synopsis
TDWC Write one Coefficient of the selected Tone Detector Cell.
Parameters
Field
Byte
Pos.
Value
Definition
TD_CELL
1
4..0
0..13
Tone detector cell number
TD_C_ADDR
2
7..0
0..B
10
20
30
(1)
40
(1)
Biquad coefficient
Energy coefficient
Static level
Energy coefficient for relative comparison
Gain for relative comparison
TD_COEFL
3
7..0
Low byte of coefficient
TD_COEFH
4
7..0
High byte of coefficient
Note 1 :
Value 30 and 40 of byte 2 are available only for secondary tone detector.
TDWW
Tone Detector Write Wiring
TDWW
Opcode:
1D
000
11101
Synopsis
TDWW Write Wiring of the selected Tone Detector Cell.
Parameters
Field
Byte
Pos.
Value
Definition
TD_CELL
1
4..0
0..13
Tone detector cell number
For Primary Tone Detector
Field
Byte
Pos.
Value
Definition
TD_W_ADDR
2
0
0
1
Other
Biquad and energy input
Comparator inputs
Reserved
If TD_W_ADDR = 0 (Select Biquad and Energy Inputs)
Field
Byte
Pos.
Value
Definition
TD_W_ERN
3
0..3F
Energy estimator signal input
TD_W_BIQ
4
0..3F
Biquad filter signal input
If TD_W_ADDR = 1 (Select Comparator Inputs)
Field
Byte
Pos.
Value
Definition
TD_W_CN
3
0..3F
Negative comparator signal input
TD_W_CP
4
0..3F
Positive comparator signal input
For Secondary Tone Detector
Field
Byte
Pos.
Value
Definition
TD_4DIFF
2
7..0
00
01
other
Relative comparison not enable
Relative comparison enable
Reserved
TD_4_CONF
3
7..0
0
Mandatory
TD_4_CONF2
4
7..0
C0
E0
F0
other
1+1 configuration
1+1+2 configuration
1+1+1+1 configuration
Reserved
VII - COMMAND SET DESCRIPTION (continued)
ST75C530 - ST75C540
40/84



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