Texas Instruments AM335x Sitara

CLOCKIN
DATAIN
1
5
4
2
3
6
7
8
CLOCKIN
DATAIN
1
4
5
3
2
6
7
8
AM3359, AM3358, AM3357, AM3356, AM3354, AM3352
www.ti.com SPRS717H –OCTOBER 2011–REVISED MAY 2015
7.14.1.2 PRU-ICSS PRU Parallel Capture Mode Electrical Data and Timing
Table 7-94. PRU-ICSS PRU Timing Requirements - Parallel Capture Mode
(see Figure 7-98 and Figure 7-99)
NO. MIN MAX UNIT
1 t
c(CLOCKIN)
Cycle time, CLOCKIN 20.00 ns
2 t
w(CLOCKIN_L)
Pulse duration, CLOCKIN low 10.00 ns
3 t
w(CLOCKIN_H)
Pulse duration, CLOCKIN high 10.00 ns
4 t
r(CLOCKIN)
Rising time, CLOCKIN 1.00 3.00 ns
5 t
f(CLOCKIN)
Falling time, CLOCKIN 1.00 3.00 ns
6 t
su(DATAIN-CLOCKIN)
Setup time, DATAIN valid before CLOCKIN 5.00 ns
7 t
h(CLOCKIN-DATAIN)
Hold time, DATAIN valid after CLOCKIN 0.00 ns
8 t
r(DATAIN)
Rising time, DATAIN 1.00 3.00 ns
t
f(DATAIN)
Falling time, DATAIN 1.00 3.00 ns
Figure 7-98. PRU-ICSS PRU Parallel Capture Timing - Rising Edge Mode
Figure 7-99. PRU-ICSS PRU Parallel Capture Timing - Falling Edge Mode
7.14.1.3 PRU-ICSS PRU Shift Mode Electrical Data and Timing
Table 7-95. PRU-ICSS PRU Timing Requirements – Shift In Mode
(see Figure 7-100)
NO. MIN MAX UNIT
1 t
c(DATAIN)
Cycle time, DATAIN 10.00 ns
2 t
w(DATAIN)
Pulse width, DATAIN 0.45 × P
(1)
0.55 × P
(1)
ns
3 t
r(DATAIN)
Rising time, DATAIN 1.00 3.00 ns
4 t
f(DATAIN)
Falling time, DATAIN 1.00 3.00 ns
(1) P = L3_CLK (PRU-ICSS ocp clock) period.
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