AM6412...ALV datasheet(121/244 Pages) TI

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Table 7-14. MCU_SAFETY_ERRORn Switching Characteristics (continued)

see Figure 7-13

NO.

PARAMETER

MIN

MAX UNIT

SFTY2 tw(MCU_SAFETY_ERRORn)

Pulse width minimum, MCU_SAFETY_ERRORn

active (PWM mode disabled)(5)

P*R(1) (2)

SFTY3

td (ERROR_CONDITION-

MCU_SAFETY_ERRORnL)

Delay time, ERROR CONDITION to

MCU_SAFETY_ERRORn active(5)

50*P(1)

(1)

P = ESM functional clock

(2)

R = Error Pin Counter Pre-Load Register count value

(3)

H = Error Pin PWM High Pre-Load Register count value

(4)

L = Error Pin PWM Low Pre-Load Register count value

(5)

When PWM mode is enabled, MCU_SAFETY_ERRORn stops toggling after RST22 and will maintain its value (either high or low) until

the error is cleared. When PWM mode is disabled, MCU_SAFETY_ERRORn is active low.

Figure 7-13. MCU_SAFETY_ERRORn Timing Requirements and Switching Characteristics

7.10.3.3 Clock Timing

Tables and figures provided in this section define timing requirements and switching characteristics for clock

signals.

Table 7-15. Clock Timing Requirements

see Figure 7-14

NO.

MIN

MAX UNIT

CLK1

tc(EXT_REFCLK1)

Cycle time minimum, EXT_REFCLK1

CLK2

tw(EXT_REFCLK1H)

Pulse Duration minimum, EXT_REFCLK1 high

E*0.45(1)

E*0.55(1)

CLK3

tw(EXT_REFCLK1L)

Pulse Duration minimum, EXT_REFCLK1 low

E*0.45(1)

E*0.55(1)

CLK19 tc(MCU_EXT_REFCLK0)

Cycle time minimum, MCU_EXT_REFCLK0

CLK20 tw(MCU_EXT_REFCLK0H)

Pulse Duration minimum, MCU_EXT_REFCLK0 high

F*0.45(2)

F*0.55(2)

CLK21 tw(MCU_EXT_REFCLK0L)

Pulse Duration minimum, MCU_EXT_REFCLK0 low

F*0.45(2)

F*0.55(2)

(1)

E = EXT_REFCLK1 cycle time

(2)

F = MCU_EXT_REFCLK0 cycle time

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AM6442, AM6441, AM6421, AM6412, AM6411

SPRSP56D – JANUARY 2021 – REVISED JULY 2022

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