BQ40Z80: System Data Contents in Sealed Mode

Stephen Hastie

Part Number: BQ40Z80

Tool/software:

Hi,

I'm trying to determine if the System Data register contents are readable when in Sealed mode. The registers I'm referring to are 0x4040 to 0x40C3 - these contain 4 strings, each up to 32 characters long

Regards,

Stephen

over 1 year ago

0 Adrian over 1 year ago

TI__Mastermind 37761 points

Hello Stephen,

You can not access any data memory locations when the gauge is sealed.

Regards,

Nick

0 Stephen Hastie over 1 year ago in reply to Adrian

Prodigy 40 points

Hi,

Looks like this data should be available when in sealed mode. See page 115 of the BQ40Z80 Technical Reference Manual.....

https://www.ti.com/lit/ug/sluubt5c/sluubt5c.pdf?ts=1717534272113&ref_url=https%253A%252F%252Fwww.ti.com%252Fproduct%252FBQ40Z80

Is this correct?

Cheers,

Stephen

+1 Adrian over 1 year ago in reply to Stephen Hastie

TI__Mastermind 37761 points

Hey Stephen,

Sorry I was mistaken, as you have shown, according to the TRM those values should be available when the gauge is sealed.

Regards,

Nick Richards

Power management

Power management forum

BQ40Z80: System Data Contents in Sealed Mode