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
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
and
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
)
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.
Copyright © 2011–2015, Texas Instruments Incorporated
Peripheral Information and Timings
225
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