Commit 3990dcfc authored by Damien George's avatar Damien George
Browse files

docs: Add note about maximum frequency of busses.

parent 14fab60b
...@@ -113,6 +113,9 @@ Power related functions ...@@ -113,6 +113,9 @@ Power related functions
Supported sysclk frequencies are (in MHz): 8, 16, 24, 30, 32, 36, 40, 42, 48, Supported sysclk frequencies are (in MHz): 8, 16, 24, 30, 32, 36, 40, 42, 48,
54, 56, 60, 64, 72, 84, 96, 108, 120, 144, 168. 54, 56, 60, 64, 72, 84, 96, 108, 120, 144, 168.
The maximum frequency of hclk is 168MHz, of pclk1 is 42MHz, and of pclk2 is
84MHz. Be sure not to set frequencies above these values.
The hclk, pclk1 and pclk2 frequencies are derived from the sysclk frequency The hclk, pclk1 and pclk2 frequencies are derived from the sysclk frequency
using a prescaler (divider). Supported prescalers for hclk are: 1, 2, 4, 8, using a prescaler (divider). Supported prescalers for hclk are: 1, 2, 4, 8,
16, 64, 128, 256, 512. Supported prescalers for pclk1 and pclk2 are: 1, 2, 16, 64, 128, 256, 512. Supported prescalers for pclk1 and pclk2 are: 1, 2,
......
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