ADSP-BF542 AD [Analog Devices], ADSP-BF542 Datasheet - Page 52

• Manufacturer Part Number: ADSP-BF542
• Description: Embedded Processor
• Manufacturer: AD [Analog Devices]

ADSP-BF542/4/7/8/9
RSCLK
TSCLK
TFS ("LATE", EXT.)
TFS ("LATE", INT.)
TSCLK (INT)
TSCLK (EXT)
DATA RECEIVE- INTERNAL CLOCK
DATA TRANSMIT- INTERNAL CLOCK
RFS
DR
TFS
DT
DT
DT
t
HOFSE
t
HOFSI
t
HDTI
DRIVE
DRIVE
EDGE
EDGE
t
DFSE
NOTE: EITHER THE RISING EDGE OR FALLING EDGE OF RCLK OR TCLK CAN BE USED AS THE ACTIVE SAMPLING EDGE.
t
t
NOTE: EITHER THE RISING EDGE OR FALLING EDGE OF RCLK OR TCLK CAN BE USED AS THE ACTIVE SAMPLING EDGE.
DDTI
DFSI
DRIVE
EDGE
DRIVE
EDGE
t
t
SCLKIW
SCLKIW
t
t
SFSI
t
SDRI
SFSI
t
DTENI
t
DTENE
SAMPLE
SAMPLE
EDGE
EDGE
Rev. PrG | Page 52 of 82 | December 2007
t
t
HDRI
t
HFSI
HFSI
Figure 20. Serial Ports
TSCLK / RSCLK
TSCLK / RSCLK
RSCLK
TSCLK
RFS
TFS
DATA RECEIVE- EXTERNAL CLOCK
DR
DT
DATA TRANSMIT- EXTERNAL CLOCK
t
t
HOFSE
HOFSE
t
HDTE
DRIVE
DRIVE
EDGE
EDGE
DRIVE
DRIVE
EDGE
EDGE
t
t
DFSE
DFSE
Preliminary Technical Data
t
DDTE
t
t
SCLKEW
SCLKEW
t
DDTTI
t
t
t
SFSE
SDRE
SFSE
t
DDTTE
SAMPLE
SAMPLE
EDGE
EDGE
t
t
t
HDRE
HFSE
HFSE