CLOCKIN
DATAIN
1
3
2
4
5
SPRS91x_TIMING_PRU_03
GPO[n:0]
2
1
SPRS91x_TIMING_PRU_02
GPI[m:0]
2
1
SPRS91x_TIMING_PRU_01
290
AM5706, AM5708
SPRS961B –AUGUST 2016–REVISED SEPTEMBER 2017
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Specifications Copyright © 2016–2017, Texas Instruments Incorporated
Table 5-153. PRU-ICSS PRU Timing Requirements - Direct Input Mode
NO. PARAMETER DESCRIPTION MIN MAX UNIT
1 t
w(GPI)
Pulse width, GPI 2 × P
(1)
ns
2 t
sk(GPI)
Skew between GPI[20:0] signals 4.5 ns
(1) ICSS_CLK clock period
Figure 5-104. PRU-ICSS PRU Direct Input Timing
(1) m in GPI[m:0] = 20
Table 5-154. PRU-ICSS PRU Switching Requirements – Direct Output Mode
NO. PARAMETER DESCRIPTION MIN MAX UNIT
1 t
w(GPO)
Pulse width, GPO 2 × P
(1)
ns
2 t
sk(GPO)
Skew between GPO[20:0] signals 4.5 ns
(1) ICSS_CLK clock period
Figure 5-105. PRU-ICSS PRU Direct Output Timing
(1) n in GPO[n:0] = 20
5.9.6.22.1.2 PRU-ICSS PRU Parallel Capture Mode Electrical Data and Timing
Table 5-155. PRU-ICSS PRU Timing Requirements - Parallel Capture Mode
NO. PARAMETER DESCRIPTION MIN MAX UNIT
1 t
w(CLOCKIN)
Cyle time, CLOCKIN 20 ns
2 t
w(CLOCKIN_L)
Pulse duration, CLOCKIN low 9 11 ns
3 t
w(CLOCKIN_H)
Pulse duration, CLOCKIN high 9 11 ns
4 t
su(DATAIN-CLOCKIN)
Setup time, DATAIN valid before CLOCKIN 4.5 ns
5 t
h(CLOCKIN-DATAIN)
Hold time, DATAIN valid after CLOCKIN 0 ns
Figure 5-106. PRU-ICSS PRU Parallel Capture Timing - Rising Edge Mode