adsp2185 Analog Devices, Inc., adsp2185 Datasheet - Page 22

• Manufacturer Part Number: adsp2185
• Description: Dsp Microcomputer
• Manufacturer: Analog Devices, Inc.

ADSP-2185
Parameter
Serial Ports
Timing Requirements:
t
t
t
t
Switching Characteristics:
t
t
t
t
t
t
t
t
t
t
SCK
SCS
SCH
SCP
CC
SCDE
SCDV
RD
SCDH
TDE
TDV
SCDD
RDV
RH
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
MULTICHANNEL MODE,
MULTICHANNEL MODE,
IN
FRAME DELAY 0
FRAME DELAY 0
Width
OUT
OUT
FRAME MODE
FRAME MODE
ALTERNATE
ALTERNATE
CLKOUT
RFS
RFS
(MFD = 0)
(MFD = 0)
TFS
TFS
Hold after SCLK High
Delay from SCLK High
SCLK
TFS
RFS
TFS
RFS
OUT
OUT
OUT
OUT
DR
DT
IN
IN
IN
IN
OUT
t
t
SCDE
CC
t
RH
t
t
TDE
TDE
t
t
SCDV
Figure 19. Serial Ports
RD
t
t
t
t
TDV
RDV
TDV
RDV
t
t
SCS
CC
–22–
t
SCH
t
SCDH
t
SCDD
Min
50
4
7
20
0.25 t
0
0
0
0
t
SCP
CK
t
SCK
t
SCP
15
Max
0.25 t
15
14
15
15
CK
+ 10
REV. 0
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns