參數(shù)資料
型號(hào): IDT821068
廠商: Integrated Device Technology, Inc.
元件分類: Codec
英文描述: OCTAL PROGRAMMABLE PCM CODEC
中文描述: 八路可編程PCM編解碼器
文件頁數(shù): 17/45頁
文件大?。?/td> 589K
代理商: IDT821068
INDUSTRIAL TEMPERATURE RANGE
IDT821068 OCTAL PROGRAMMABLE PCM CODEC
17
Read "FO" and "FS" bit in Global Command 24
FO=1
FS=0
Set FO=1
Set "Seizure length" in global Command 22
Set "Mark length" in global Command 23
Set "Flag length" in global Command 20
Total message data =< 64 bytes
Set "Data length" in global Command 21
Write message data into FSK-RAM
In Global Command 24:
Set FCS[2:0] bits to select FSK channel
Set FMS bit to select specification (Bellcore or BT)
Set MAS = 0
Set FS = 1
Set "Data length" at this time
in Global Command 21
Write message data to be sent
at this time to FSK-RAM
In Global Command 24:
Set FCS[2:0] bits to select FSK channel
Set FMS bit to select specification (Bellcore or BT)
Set MAS = 1
Set FS = 1
Finish sending all the message data
Set MAS and FO bit to 0 in
Global Command 24
End
Set "Seizure length" to 0
in Global Command 22
Set "Mark length" to 0
in Global Command 23
End
Start
N
Y
Finish sending message data
Set FO = 0 in Global Command 24
Y
N
Y
N
Y
N
Y
N
Figure 11
.
A Recommended Programming Flow Chart for FSK Generator
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