參數(shù)資料
型號(hào)： KS16114
廠商： SAMSUNG SEMICONDUCTOR CO. LTD.
英文描述： 9600/14400 bps FAX MODEM
中文描述： 14400分之9600基點(diǎn)傳真調(diào)制解調(diào)器
文件頁(yè)數(shù)： 35/69頁(yè)
文件大?。?/td> 513K
代理商： KS16114
KS16112/4
9600/14400 bps FAX MODEM
-
35
-
The dual port interface memory is used during host-to-DSP RAM or DSP RAM-to-host data transfers.
The DSP RAM address accessed is determined by the address stored in the DSP interface memory ( ADR
X
,
where X =1 or 2 ). The words (16 bits each ) are transferred once each baud or once each sampling period
( determined by BRT
X
bit, where X= 1 or 2 ). The sampling rate is 9,600 Hz for all configurations, but the baud
rate or symbol rate is determined by the selected configuration ( see Table 7). Two RAM access bits in
the modem interface memory instruct the DSP to access the XRAM and/or the YRAM. The host first sets
the RA1 and/or RA2 bits which are tested by the DSP each baud or sample period, as determined by the
corresponding BRT
X
bit setting. The DSP RAM access functions, codes and registers are listed in Table 2.
Table 2. Modem DSP RAM Access Codes
Item No.
Function
BRT
X
CRAM
X
ADR
X
X,Y
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Received Signal Samples
AGC Gain Word
Carrier Detect Turn on Threshold
Carrier Detect Turn off Threshold
Receiver Sensitivity, MAXG
Tone 1 Frequency
Tone 1 Transmit Output Level
Tone 2 Frequency
Tone 2 Transmit Output Level
Transmit Output Level
Equalizer Tap Coefficients
Rotated Equalizer Output, Eye Pattern
Decision Points, Ideal Points
Error Vector
0
0
0
0
0
0
0
0
0
0
1
1
1
1
0
1
1
1
1
1
0
1
0
0
1
1
0
1
15
15
37
B7
24
21
22
22
23
21
3A - 69
17
17
1D
X
X
X
X
X
X
X
X
X
X
X,Y
X,Y
X,Y
X,Y
3.1 Interface Memory Access of DSP RAM
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PDF描述
KS16112 CAP 33PF 50V 5% NPO(C0G) SMD-0603 TR-7-PA
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