adsp-21992 Analog Devices, Inc., adsp-21992 Datasheet - Page 42

• Manufacturer Part Number: adsp-21992
• Description: Mixed Signal Dsp Controller With Can
• Manufacturer: Analog Devices, Inc.

ADSP-21992
TFS (“LATE,” EXT)
TFS (“LATE,” INT)
RCLK
TCLK
RFS
TFS
DR
DT
DATA TRANSMIT-INTERNAL CLOCK
TCLK (EXT)
DATA RECEIVE-INTERNAL CLOCK
TCLK (INT)
DT
DT
DRIVE
DRIVE
EDGE
EDGE
t
t
t
HOFSE
HOFSE
HDTI
t
DFSE
t
DRIVE
DRIVE
t
EDGE
NOTE: EITHER THE RISING EDGE OR FALLING EDGE OF RCLK OR TCLK CAN BE USED AS THE ACTIVE SAMPLING EDGE.
NOTE: EITHER THE RISING EDGE OR FALLING EDGE OF RCLK OR TCLK CAN BE USED AS THE ACTIVE SAMPLING EDGE.
EDGE
DFSE
DDTI
t
t
DDTEN
DDTIN
t
t
SCLKIW
SCLKIW
t
t
t
SFSI
SDRI
SFSI
SAMPLE
SAMPLE
EDGE
EDGE
t
t
t
HDRI
HFSI
HFSI
Rev. A | Page 42 of 60 | August 2007
Figure 13. Serial Port
TCLK/RCLK
TCLK/RCLK
RCLK
TCLK
RFS
TFS
DR
DT
DATA TRANSMIT-EXTERNAL CLOCK
DATA RECEIVE-EXTERNAL CLOCK
DRIVE
DRIVE
EDGE
EDGE
t
t
t
DRIVE
EDGE
DRIVE
EDGE
HOFSE
HOFSE
HDTE
t
t
t
DFSE
DFSE
DDTTI
t
DDTE
t
DDTTE
t
t
SCLKW
SCLKW
t
t
t
SDRE
SFSE
SFSE
SAMPLE
SAMPLE
EDGE
EDGE
t
t
t
HFSE
HDRE
HFSE