EP9307 Datasheet, PDF (35/48 Pages) Cirrus Logic – ARM9 SOC WITH ETHERNET USB DISPLAY AND TOUCHSCREEN

AC’97
Parameter
ABITCLK input cycle time
ABITCLK input high time
ABITCLK input low time
ABITCLK input rise time
ABITCLK input fall time
ASDI setup to ABITCLK falling
ASDI hold after ABITCLK falling
ASDI input rise/fall time
ABITCLK rising to ASDO/ASYNC valid, C_L = 55 pF
ASYNC/ASDO rise time, C_L = 55 pF
ASYNC/ASDO fall time, C_L = 55 pF
EP9307
ARM9 SOC with Ethernet, USB, Display and Touchscreen
Symbol
t_{clk_per}
t_{clk_high}
t_{clk_low}
t_clkr
t_clkf
t_s
t_h
t_rfin
t_co
t_rout
t_fout
Min
-
36
36
2
2
10
10
2
2
2
2
Typ
Max
81.4
-
-
45
-
45
-
6
-
6
23
-
53
-
-
6
-
15
-
6
-
6
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ABITCLK
t_{clk_per}
t _clkrf
ASDI
t_{clk_high}
t_{clk_low}
t_clkrff
t_h
t_rfin
t_s
ASDO
t _co
ASYNC
t_foutt/_rt_ffoouutt
t_rrofouutt
t _co
t_co
t^t_rff_oo_uu_tt
Figure 21. AC ‘97 Configuration Timing Measurement
DS667PP3
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