EP9302 Datasheet, PDF (32/42 Pages) Cirrus Logic – High-speed ARM9 System-on-chip Processor with MaverickCrunch

EP9302
High-speed ARM9 System-on-chip Processor with MaverickCrunch
Inter-IC Sound - I²S
Parameter
SCLK cycle time
SCLK high time
SCLK low time
SCLK rise/fall time
SCLK to LRCLK assert delay time
Hold between SCLK assert then LRCLK deassert
or
Hold between LRCLK deassert then SCLK assert
SDI to SCLK deassert setup time
SDI from SCLK deassert hold time
SCLK assert to SDO delay time
SDO from SCLK assert hold time
Symbol
t_{clk_per}
t_{clk_high}
t_{clk_low}
t_clkrf
t_LRd
t_LRh
t_SDIs
t_SDIh
t_SDOd
t_SDOh
Note:
t_{i2s_clk} is programmable by the user.
Min
-
-
-
1
-
Typ
t_{i2s_clk}
(t_{i2s_clk}) / 2
(t_{i2s_clk}) / 2
4
-
Max
-
-
-
8
3
0
-
-
12
-
-
0
-
-
-
-
9
1
-
-
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
t_{clk_high}
SCLK
LRCLK
SDI
SDO
t_{clk_per}
t_{clk_low}
t_LRd
t_LRh
t_SDIs
t_SDOd
t_SDOh
t_clkrf
t_SDIh
Figure 19. Inter-IC Sound (I²S) Timing Measurement
32
©Copyright 2005 Cirrus Logic (All Rights Reserved)
DS653PP3