參數(shù)資料
型號: ADSP-21mod970
廠商: Analog Devices, Inc.
英文描述: Multi-Port Internet Gateway Processor(多口網(wǎng)關(guān)處理器)
中文描述: 多端口Internet網(wǎng)關(guān)處理器(多口網(wǎng)關(guān)處理器)
文件頁數(shù): 39/50頁
文件大?。?/td> 980K
代理商: ADSP-21MOD970
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ADSP-21mod970 Preliminary Data Sheet
2FWREHU
t
SCDE
Technca
RFS
OUT
TFS
OUT
TIMING PARAMETERS ADSP-21mod970
Serial Ports
Figure 23 Serial Ports
Parameter
Serial Ports
Timing Requirements:
t
SCK
t
SCS
t
SCH
t
SCP
Min
Max
Unit
SCLK Period
DR/TFS/RFS Setup before SCLK Low
DR/TFS/RFS Hold after SCLK Low
SCLKIN Width
Switching Characteristics:
t
CC
t
SCDE
t
SCDV
t
RH
t
RD
t
SCDH
t
TDE
t
TDV
t
SCDD
t
RDV
CLKOUT High to SCLKOUT
SCLK High to DT Enable
SCLK High to DT Valid
TFS/RFSOUT Hold after SCLK High
TFS/RFSOUT Delay from SCLK High
DT Hold after SCLK High
TFS (Alt) to DT Enable
TFS (Alt) to DT Valid
SCLK High to DT Disable
RFS (Multichannel, Frame Delay Zero) to DT Valid
50
4
7
20
0.25t
CK
0
0.25t
CK
+ 10
15
0
15
0
0
14
15
15
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
CLKOUT
SCLK
TFS
OUT
RFSOUT
DT
ALTERNATE
FRAME MODE
t
CC
t
CC
SCS
SCH
t
RH
SCDH
SCDD
t
TDE
t
RDV
MULTICHANNEL
MODE,
FRAME DELAY 0
(MFD = 0)
DR
TFS
IN
RFS
IN
t
TDV
t
SCDV
t
RD
t
SCP
t
SCK
t
SCP
TFSIN
RFSIN
ALTERNATE
FRAME MODE
t
RDV
MULTICHANNEL
MODE,
FRAME DELAY 0
(MFD = 0)
t
TDE
t
TDV
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