AM3351 datasheet(222/252 Pages) TI1

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GPO[n:0]

GPI[m:0]

222

AM3359, AM3358, AM3357, AM3356, AM3354, AM3352, AM3351

SPRS717J – OCTOBER 2011 – REVISED APRIL 2016

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Peripheral Information and Timings

7.14 Programmable Real-Time Unit Subsystem and Industrial Communication Subsystem

(PRU-ICSS)

For more information, see the Programmable Real-Time Unit Subsystem and Industrial Communication

Subsystem Interface (PRU-ICSS) section of the AM335x and AMIC110 Sitara Processors Technical

Reference Manual.

7.14.1 Programmable Real-Time Unit (PRU-ICSS PRU)

Table 7-91. PRU-ICSS PRU Timing Conditions

PARAMETER

MIN

MAX

UNIT

Output Condition

Cload

Capacitive load for each bus line

7.14.1.1 PRU-ICSS PRU Direct Input/Output Mode Electrical Data and Timing

(1)

P = L3_CLK (PRU-ICSS ocp clock) period.

(2)

n = 16

Table 7-92. PRU-ICSS PRU Timing Requirements - Direct Input Mode

(see Figure 7-96)

NO.

MIN

MAX

UNIT

tw(GPI)

Pulse width, GPI

2 × P(1)

tr(GPI)

Rise time, GPI

1.00

3.00

tf(GPI)

Fall time, GPI

1.00

3.00

tsk(GPI)

Internal skew between GPI[n:0] signals(2)

PRU0

1.00

PRU1

3.00

(1)

P = L3_CLK (PRU-ICSS ocp clock) period

(2)

n = 15

Figure 7-96. PRU-ICSS PRU Direct Input Timing

Table 7-93. PRU-ICSS PRU Switching Requirements – Direct Output Mode

(see Figure 7-69)

NO.

PARAMETER

MIN

MAX

UNIT

tw(GPO)

Pulse width, GPO

2 × P(1)

tr(GPO)

Rise time, GPO

1.00

3.00

tf(GPO)

Fall time, GPO

1.00

3.00

tsk(GPO)

Internal skew between GPO[n:0] signals(2)

PRU0

1.00

PRU1

5.00

Figure 7-97. PRU-ICSS PRU Direct Output Timing

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