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Ticket Name: TDA2SX: TDA2SXBTQABCRQ1 | |
Query Text: | |
Part Number: TDA2SX Other Parts Discussed in Thread: TDA2 1. How many watchdog timers in TDA2SXBTQABCRQ1 and where? 2. The MPU has its own watchdog timer that is different from watchdog timer in the PRCM? 3.IPU and DSP use the watchdog in the PRCM? If so, how to distinguish the error output by watchdog? 4. The following picture is from TDA2 technical reference manual chapter 18.4.6. When T is not within threshold low to threshold high, the output alert maybe do not be asserted to 1, like the blue arrow in the picture. Why? thank you! | |
Responses: | |
1. 2 watchdog timers. 1x system watchdog and 1x MPU watchdog timer. 2. yes. 3. One watchdog timer can only be used by either IPU or DSP. You can also use GP Timer as watchdog timer. 4. Alert (Temp too high) is generated first when the temp goes above the high threshold and the next alert (Temp is safe) is generated only when the temp goes below the low threshold. In between this two events is where you have to do thermal management to lower the temp to avoid thermal shutdown. | |