ADSP-BF522 AD [Analog Devices], ADSP-BF522 Datasheet - Page 51

• Manufacturer Part Number: ADSP-BF522
• Description: Blackfin Embedded Processor
• Manufacturer: AD [Analog Devices]

Preliminary Technical Data
Table 40. Serial Ports — External Late Frame Sync
1
2
Parameter
Switching Characteristics
t
t
When in multi-channel mode, TFSx enable and TFSx valid follow t
If external RFSx/TFSx setup to RSCLKx/TSCLKx > t
DDTLFSE
DTENLFSE
Data Delay from Late External TFSx
or External RFSx in multi-channel mode with MFD = 0
Data Enable from External RFSx in multi-channel mode
with MFD = 0
LATE EXTERNAL TFSx
EXTERNAL RFSx IN MULTI-CHANNEL MODE WITH MCE = 1
RSCLKx
RFSx
DTx
TSCLKx
DTx
TFSx
1, 2
SCLKE
DRIVE
DRIVE
/2 then t
t
DTENLFSE
t
t
Figure 25. Serial Ports — External Late Frame Sync
DDTLFSE
DDTLFSE
t
Rev. PrG | Page 51 of 80 | February 2009
SFSE/I
t
SFSE/I
DDTTE/I
DTENLFSE
SAMPLE
SAMPLE
and t
1ST BIT
1ST BIT
and t
DTENE/I
DDTLFSE
apply, otherwise t
DRIVE
DRIVE
.
1, 2
t
Min
HOFSE/I
t
0.0
HOFSE/I
ADSP-BF522/524/526
V
1.8 V
DDEXT
ADSP-BF522/523/524/525/526/527
DDTLFSE
Max
10.0
=
and t
Min
0.0
2.5/3.3 V
V
DTENLFSE
DDEXT
Max
10.0
=
apply.
Min
0.0
ADSP-BF523/525/527
V
DDEXT
1.8 V
Max
12.0
=
Min
0.0
2.5/3.3 V
V
DDEXT
Max Unit
10.0 ns
=
ns