EP9301 Datasheet, PDF (31/41 Pages) Cirrus Logic – Entry-level ARM9 System-on-chip Processor

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
Note:
t_{i2s_clk} is programmable by the user.
EP9301
Entry Level ARM9 System-on-Chip Processor
Symbol
t_{clk_per}
t_{clk_high}
t_{clk_low}
t_clkrf
t_LRd
t_LRh
t_SDIs
t_SDIh
t_SDOd
t_SDOh
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
DS636PP5
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