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參數(shù)資料
| 型號(hào)： | Z0220516SSCR4292 |
| 英文描述： | Modem Controller |
| 中文描述： | 調(diào)制解調(diào)器控制器 |
| 文件頁(yè)數(shù)： | 25/48頁(yè) |
| 文件大?。?/td> | 1331K |
| 代理商： | Z0220516SSCR4292 |
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Z02202
ZiLOG
V.22bis Data Pump with Integrated AFE
PS000902-0501
Z02201
25
ToneStatus
01FC
080H
Biquad Tone Detector Control and Status, Dial Control
The data pump sets this location to its default value at any reset
.
b15
TONEA (Tone A Detected)
The tone frequency programmed in biquad detector A is
detected if this bit is set.
b14
TONEB (Tone B Detected)
The tone frequency programmed in biquad detector B is
detected if this bit is set.
b13
Cascade Biquad Tone Detectors A & B
The two 4th-order biquad tone detectors can be cascaded
to form a single 8th-order biquad tone detector if this bit is
set by the host. The result of the cascaded biquad tone
detector is available in ToneStatus, bit 15.
b7
TONEDIAL (Use DTMF to Dial)
This bit causes the data pump to use DTMF tone dialing
when in dialing mode (
Con
fi
g register, bits 0
–
6 (MODE) is
3).
b5
SQRDIS (Squarer Disable)
Set SQRDIS to 1 to cause the data pump to provide the
output of biquad detector A directly to the input of biquad
detector B, without
fi
rst squaring it. SQRDIS is valid only
when the biquad tone detectors are cascaded (see
ToneStatus, bit 13).
b4
TIMEDIAL (Timed Dialing)
Set TIMEDIAL to 1 to cause the data pump to generate
timed DTMF tones or pulse dialing. If TIMEDIAL to 0,
continuous dialing is used.
b0
–
b3
DIAL DIGIT
The DTMF digit to be dialed is set here before
Con
fi
g is set for DTMF transmit. See the table below to
determine how to set this parameter. For pulse dialing,
only digits 0 through 9 are valid:
Digit
0
1
2
3
4
5
6
7
8
9
*
#
A
B
C
D
Value
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Table 15. Modem Data Pump Word De
fi
nitions (Continued)
Register & Address
(hex)
Default
Value
Function and Explanation
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