參數(shù)資料
型號: ADSP-2187NKCA-320
廠商: ANALOG DEVICES INC
元件分類: 數(shù)字信號處理
英文描述: DSP Microcomputer
中文描述: 24-BIT, 40 MHz, OTHER DSP, PBGA144
封裝: MO-205AC, BGA-144
文件頁數(shù): 32/48頁
文件大?。?/td> 1571K
代理商: ADSP-2187NKCA-320
ADSP-218xN Series
–32–
REV. 0
Serial Ports
Table 20. Serial Ports
Parameter
Timing Requirements:
t
SCK
t
SCS
t
SCH
t
SCP
Switching Characteristics:
t
CC
t
SCDE
t
SCDV
t
RH
t
RD
t
SCDH
t
TDE
t
TDV
t
SCDD
t
RDV
Min
Max
Unit
SCLK Period
DR/TFS/RFS Setup before SCLK Low
DR/TFS/RFS Hold after SCLK Low
SCLKIN Width
30
4
7
12
ns
ns
ns
ns
CLKOUT High to SCLKOUT
SCLK High to DT Enable
SCLK High to DT Valid
TFS/RFS
OUT
Hold after SCLK High
TFS/RFS
OUT
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
0.25t
CK
0
0.25t
CK
+ 6
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
12
0
12
0
0
12
12
12
Figure 29. Serial Ports
CLKOUT
SCLK
TFS
OUT
ALTERNATE
FRAME
MODE
RFS
OUT
DT
t
CC
t
CC
t
SCS
t
SCH
t
RH
t
SCDE
t
SCDH
t
SCDD
t
TDE
t
RDV
MULTICHANNEL
MODE,
FRAME DELAY 0
(MFD = 0)
DR
TFS
IN
RFS
IN
RFS
OUT
TFS
OUT
t
TDV
t
SCDV
t
RD
t
SCP
t
SCK
TFS
IN
RFS
IN
ALTERNATE
FRAME
MODE
t
RDV
MULTICHANNEL
MODE,
FRAME DELAY 0
(MFD = 0)
t
TDV
t
TDE
t
SCP
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