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AURIX™ Forum Discussions

User19977
Level 2
5 replies posted 5 questions asked First reply posted
Level 2
Hi there,

Core 1 on TC27x is a 1.6P. Can I push the cpu frequency to 300MHz?

Thanks,
Ke
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3 Replies
NeMa_4793301
Level 6
10 solutions authored 5 solutions authored First solution authored
Level 6
See Table 3-5 Operating Conditions on page 162 of the datasheet: the maximum frequency for all 3 CPUs is 200 MHz.
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User19977
Level 2
5 replies posted 5 questions asked First reply posted
Level 2
Can I assume the core 1 is warmer than core 0 but can be ignored? Because the core max frequency is limited by PLL, so the 200MHz is quite below the design limitation of the 1.6P, which is for 300MHz.

Thanks,
Ke
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NeMa_4793301
Level 6
10 solutions authored 5 solutions authored First solution authored
Level 6
The synthesis is different between the TC29x (300 MHz maximum) and the TC27x (200 MHz maximum). The numbers in Operating Conditions are not just guidelines - they are actual maximum ratings.

The PLL for both TC29x and TC27x is 400 MHz min / 800 MHz max, so that's not where the limitation comes from.
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