Datasheet

Table Of Contents
Rev. 0 | Page 80 of 112 | June 2013
ADSP-BF606/ADSP-BF607/ADSP-BF608/ADSP-BF609
Table 48. Serial Ports—Enable and Three-State
V
DD_EXT
1.8 V Nominal
V
DD_EXT
3.3 V Nominal
Parameter Min Max Min Max Unit
Switching Characteristics
t
DDTEN
Data Enable from External Transmit SPT_CLK
1
11ns
t
DDTTE
Data Disable from External Transmit SPT_CLK
1
18.8 14 ns
t
DDTIN
Data Enable from Internal Transmit SPT_CLK
1
–1 –1 ns
t
DDTTI
Data Disable from Internal Transmit SPT_CLK
1
2.8 2.8 ns
1
Referenced to drive edge.
Figure 32. Serial Ports—Enable and Three-State
DRIVE EDGE DRIVE EDGE
t
DDTIN
t
DDTEN
t
DDTTE
SPT_CLK
(SPORT CLOCK
INTERNAL)
SPT_A/BDx
(DATA
CHANNEL A/B)
SPT_CLK
(SPORT CLOCK
EXTERNAL)
SPT_A/BDx
(DATA
CHANNEL A/B)
DRIVE EDGE DRIVE EDGE
t
DDTTI