TMS470R1A384 Questions

James Davis said:

1. The datasheet states that there is a digital watchdog timer (DWD) but there is no additional mention of that timer in the SPNU189 documentation.  Is this timer a part of this micro and if so where can I find documentation on it?

"Removed references to digital watchdog (DWD) on page 5." in revision C of the data sheet.

Data shet TMS470R1A384 16/32-Bit RISC Flash Microcontroller (Rev. E)  (PDF , 641 KB)   21 May 2008

James Davis said:

2. We are grounding the AWD pin with a 10kohm resistor because we are not using the AWD function.  Is a 10kohm resistor adequate to ensure the AWD pin does not trigger a reset?

What more information would you need that is not included here?  Find, "External Required Circuit for Watchdog."

TMS470R1x System Module Reference Guide

James Davis said:

3. Is there any reset (AWD or DWD) related errata that we should be aware of on this device?

There is no mention of the watchdog in the errata sheet which indicates there are no related errata.

TMS470R1A384 TMS470 Microcontroller Silicon Errata (Rev. B)  (PDF , 236 KB)   29 Jan 2007

James,

Did Jason's post answer your questions? If so, please verify his answer so that we can close the thread.