adsp-21266skstz-2b Analog Devices, Inc., adsp-21266skstz-2b Datasheet - Page 34

• Manufacturer Part Number: adsp-21266skstz-2b
• Description: Sharc Embedded Processor
• Manufacturer: Analog Devices, Inc.

ADSP-21261/ADSP-21262/ADSP-21266
Input Data Port (IDP)
The timing requirements for the IDP are given in
Figure
DAI_P20–1 pins using the SRU. Therefore, the timing specifica­
tions provided below are valid at the DAI_P20–1 pins.
Table 33. Input Data Port (IDP)
1
Parameter
Timing Requirements
t
t
t
t
t
t
DATA, SCLK, FS can come from any of the DAI pins. SCLK and FS can also come via the precision clock generators (PCG) or SPORTs. PCG input can be either
SISFS
SIHFS
SISD
SIHD
IDPCLKW
IDPCLK
CLKIN or any of the DAI pins.
23. IDP Signals (SCLK, FS, SDATA) are routed to the
FS Setup Before SCLK Rising Edge
FS Hold After SCLK Rising Edge
SDATA Setup Before SCLK Rising Edge
SDATA Hold After SCLK Rising Edge
Clock Width
Clock Period
DAI_P20
DAI_P20
DAI_P20
(SDATA)
(SCLK)
(FS)
–
–
–
1
1
1
1
Table 33
1
1
Rev. E | Page 34 of 48 | July 2008
Figure 23. Input Data Port (IDP)
1
and
t
IDPCLKW
t
SISFS
t
SISD
SAMPLE EDGE
Min
2.5
2.5
2.5
2.5
7
20
t
t
SIHFS
SIHD
Max
Unit
ns
ns
ns
ns
ns
ns