ADSP-2104 Analog Devices, ADSP-2104 Datasheet - Page 33

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ADSP-2104

Manufacturer Part Number
ADSP-2104
Description
Low Cost DSP Microcomputers
Manufacturer
Analog Devices
Datasheet

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REV. 0
TIMING PARAMETERS (ADSP-2104L/ADSP-2109L)
SERIAL PORTS
Parameter
Timing Requirement:
t
t
t
t
Switching Characteristic:
t
t
t
t
t
t
t
t
t
t
SCK
SCS
SCH
SCP
CC
SCDE
SCDV
RH
RD
SCDH
TDE
TDV
SCDD
RDV
SCLK Period
DR/TFS/RFS Setup before SCLK Low
DR/TFS/RFS Hold after SCLK Low
SCLK
CLKOUT High to SCLK
SCLK High to DT Enable
SCLK High to DT Valid
TFS/RFS
TFS/RFS
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
in
Width
out
out
FRAME DELAY 0 {MFD = 0} )
Hold after SCLK High
Delay from SCLK High
( MULTICHANNEL MODE,
FRAME MODE )
( ALTERNATE
CLKOUT
out
RFS
TFS
SCLK
RFS
TFS
RFS
TFS
OUT
OUT
DR
DT
IN
IN
t
t
t
SCDE
CC
SCDV
t
t
t
t
TDE
TDV
RD
RH
Figure 30. Serial Ports
t
RDV
Min
72.3
8
10
28
18.1
0
0
0
0
13.824 MHz
–33–
t
t
CC
SCS
t
SCH
Max
33.1
20
20
18
25
20
t
SCDH
t
SCDD
t
SCP
Min
0.25t
ADSP-2104/ADSP-2109
Dependency
Frequency
CK
t
SCK
t
SCP
Max
0.25t
CK
+ 15
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns

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