SLVUBY7A
October 2020 – October 2022
DRA821U
,
DRA821U-Q1
,
LP8764-Q1
,
TPS6594-Q1
User's Guide for Powering DRA821 with TPS6594-Q1 and LP8764-Q1
Trademarks
1
Introduction
2
Device Versions
3
Processor Connections
4
Supporting Functional Safety Systems
4.1
Achieving ASIL-B System Requirements
4.2
Achieving up to ASIL-D System Requirements
5
Static NVM Settings
5.1
Application-Based Configuration Settings
5.2
Device Identification Settings
5.3
BUCK Settings
5.4
LDO Settings
5.5
VCCA Settings
5.6
GPIO Settings
5.7
Finite State Machine (FSM) Settings
5.8
Interrupt Settings
5.9
POWERGOOD Settings
5.10
Miscellaneous Settings
5.11
Interface Settings
5.12
Multi-Device Settings
5.13
Watchdog Settings
6
Pre-Configurable Finite State Machine (PFSM) Settings
6.1
Configured States
6.2
PFSM Triggers
6.3
Power Sequences
6.3.1
TO_SAFE_SEVERE
6.3.2
TO_SAFE_ORDERLY and TO_STANDBY
6.3.3
ACTIVE_TO_WARM
6.3.4
ESM_SOC_ERROR
6.3.5
PWR_SOC_ERROR
6.3.6
MCU_TO_WARM
6.3.7
TO_MCU
6.3.8
TO_ACTIVE
6.3.9
TO_RETENTION
7
Application Examples
7.1
Moving Between States: ACTIVE, MCU, and RETENTION
7.1.1
ACTIVE
7.1.2
MCU ONLY
7.1.3
RETENTION
7.2
Entering and Exiting Standby
7.3
Entering and Existing LP_STANDBY
7.4
GPIO8 and Watchdog
8
Additional Resources
9
Revision History
6.3
Power Sequences