AM6548 datasheet(149/282 Pages) TI

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7.9.3.2 Safety Signal Timing

Tables and figures provided in this section define switching characteristics for MCU_SAFETY_ERRORn and

SOC_SAFETY_ERRORn.

Table 7-10. MCU_SAFETY_ERRORn Switching Characteristics

see Figure 7-10

NO.

PARAMETER

MIN

MAX

UNIT

SFTY1 tw(MCU_SAFETY_ERRORn)

Pulse width, MCU_SAFETY_ERRORn active

P*R(1) (2)

SFTY2 td (ERROR_CONDITION-MCU_SAFETY_ERRORnL)

Delay time, ERROR CONDITION to

MCU_SAFETY_ERRORn

active

50*P(1)

(1)

P = ESM functional clock.

(2)

R = Error Pin Counter Pre-Load Register count value.

MCU_SAFETY_ERRORn

(PWM Mode Disabled)

SFTY1

SFTY2

Internal Error Condition

(Active High)

Figure 7-10. MCU_SAFETY_ERRORn Switching Characteristics

Table 7-11. SOC_SAFETY_ERRORn Switching Characteristics

see Figure 7-11

NO.

PARAMETER

MIN

MAX

UNIT

SFTY3 tw(SOC_SAFETY_ERRORn)

Pulse width,SOC_SAFETY_ERRORn active

P*R(1) (2)

SFTY4 td (ERROR_CONDITION-SOC_SAFETY_ERRORnL)

Delay time, ERROR CONDITION to

SOC_SAFETY_ERRORn

active

50*P(1)

(1)

P = ESM functional clock.

(2)

R = Error Pin Counter Pre-Load Register count value.

SOC_SAFETY_ERRORn

(PWM Mode Disabled)

SFTY3

SFTY4

Internal Error Condition

(Active High)

Figure 7-11. SOC_SAFETY_ERRORn Switching Characteristics

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AM6548, AM6528, AM6526

SPRSP52B – DECEMBER 2019 – REVISED JUNE 2021

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