Datasheet

Rev. D | Page 36 of 56 | April 2013
ADSP-21371/ADSP-21375
Table 29. Serial Ports—Enable and Three-State
1.0 V, 200 MHz 1.2 V, 266 MHz
Parameter Min Max Min Max Unit
Switching Characteristics
t
DDTEN
1
Data Enable from External Transmit SCLK 2 2 ns
t
DDTTE
1
Data Disable from External Transmit SCLK 11.3 10 ns
t
DDTIN
1
Data Enable from Internal Transmit SCLK –1 –1 ns
1
Referenced to drive edge.
Figure 21. Enable and Three-State
DRIVE EDGE
DRIVE EDGE
DRIVE EDGE
t
DDTIN
t
DDTEN
t
DDTTE
DAI_P20–1
(SCLK, INT)
DAI_P20–1
(DATA
CHANNEL A/B)
DAI_P20–1
(SCLK, EXT)
DAI_P20–1
(DATA
CHANNEL A/B)