Datasheet

Rev. I | Page 36 of 64 | August 2013
ADSP-BF531/ADSP-BF532/ADSP-BF533
Table 30. Serial Ports—Enable and Three-State
V
DDEXT
= 1.8 V V
DDEXT
= 2.5 V/3.3 V
Parameter Min Max Min Max Unit
Switching Characteristics
t
DTENE
Data Enable Delay from External TSCLKx
1
00ns
t
DDTTE
Data Disable Delay from External TSCLKx
1, 2, 3
10.0 10.0 ns
t
DTENI
Data Enable Delay from Internal TSCLKx
1
2.0 2.0 ns
t
DDTTI
Data Disable Delay from Internal TSCLKx
1, 2, 3
3.0 3.0 ns
1
Referenced to drive edge.
2
Applicable to multichannel mode only.
3
TSCLKx is tied to RSCLKx.
Figure 25. Enable and Three-State
TSCLKx
DTx
DRIVE EDGE
t
DDTTE/I
t
DTENE/I
DRIVE EDGE