MSP430FR2532: 1.8 Volt startup with SVS disabled

Jamie Wojcik17

Can the msp430fr2532 startup from 1.8 Volts if the SVS is disabled in the firmware? I would like to run the part at 1.8 volts since another processor in the system uses 1.8 volts to avoid level translators. The datasheet says it can run at 1.8 volts if SVS is turned off but SVS is turned on by default.

over 8 years ago

0 zrno soli over 8 years ago

Guru 34973 points

No, because after power up, SVS is reseted, and at 1.8V device will not start executing firmware. If 1.8V is must for you, than you can use 5xx flash family, that will start and work at min 1.8V.

0 Xiaodong LI over 8 years ago in reply to zrno soli

TI__Mastermind 25285 points

In the first page of DS, Supply Voltage Range is 1.8~3.6V, but it is restricted by SVS levels.
SVS is enable by PMMCTL0.SVSHE default value 1. SVS can be disable after device power on. but SVS is enable once device reset.

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MSP430FR2532: 1.8 Volt startup with SVS disabled