diff --git a/Docs/som_clocks.md b/Docs/som_clocks.md index adff2ef..7dc974d 100644 --- a/Docs/som_clocks.md +++ b/Docs/som_clocks.md @@ -27,8 +27,8 @@ and value for a given clock setup. ## Hardware integration -The USB differential clock generation is already integrated internally -in the SoM. +The USB differential clock generation is already integrated in the SoM. +Here is the description of how it works internally. The extra free output clock may be looped back to the external input clock pin, so that the PLL provides a clock with an arbitrary frequency directly to the FPGA. @@ -40,6 +40,9 @@ It is also possible to provide an external input clock source to the FPGA. ## RTL integration +The clocks are already integrated in the RTL. +Here is the description of how it works internally. + The FPGA can use the external input clock, routed to its pin `H8`, which is a primary clock pin (PCLK), usable for DDR I/O. diff --git a/Docs/som_mipi.md b/Docs/som_mipi.md index 5a83c86..c612f81 100644 --- a/Docs/som_mipi.md +++ b/Docs/som_mipi.md @@ -13,6 +13,8 @@ pairs available. ## Hardware integration +The MIPI pins are capable of 1.2 Gbit/s I/O in differential mode. + Each MIPI interface can have more or less differential pairs for the data lanes, and always one dedicated pair for the associated clock signal.