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| author | Sylvain Munaut <tnt@246tNt.com> | 2023-02-01 10:22:27 +0100 |
|---|---|---|
| committer | Sylvain Munaut <tnt@246tNt.com> | 2023-02-01 11:04:27 +0100 |
| commit | bb519401cd4facc45cfc491a583b8d4eb823f00b (patch) | |
| tree | d6e863e01462b6a8f504e3ba92512f3e4981499f /docs | |
| parent | 45f5e5f3889afb07907bab439cf071478ee5a2a5 (diff) | |
| download | icestorm-bb519401cd4facc45cfc491a583b8d4eb823f00b.tar.gz icestorm-bb519401cd4facc45cfc491a583b8d4eb823f00b.tar.bz2 icestorm-bb519401cd4facc45cfc491a583b8d4eb823f00b.zip | |
icebox: Add PLL ICEGATE function
Only tested on UP5k. For others, it was just deduced.
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/io_tile.html | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/docs/io_tile.html b/docs/io_tile.html index 82cf65b..2b074ca 100644 --- a/docs/io_tile.html +++ b/docs/io_tile.html @@ -428,6 +428,9 @@ follows (bits listed from LSB to MSB): <tr><td>0 3</td><td><span style="font-family:monospace">PLLCONFIG_8</span></td><td rowspan="1"><span style="font-family:monospace">TEST_MODE</span></td></tr> +<tr><td>0 5</td><td><span style="font-family:monospace">PLLCONFIG_2</span></td><td rowspan="1">Enable ICEGATE for <span style="font-family:monospace">PLLOUTGLOBALA</span></td></tr> +<tr><td>0 5</td><td><span style="font-family:monospace">PLLCONFIG_4</span></td><td rowspan="1">Enable ICEGATE for <span style="font-family:monospace">PLLOUTGLOBALB</span></td></tr> + </table></td><td> <table class="ctab"> @@ -502,4 +505,12 @@ PIOs can only be used as output Pins by the FPGA fabric when the PLL ports are being used. </p> +<p> +The input path that are stolen are also used to implement the ICEGATE function. +If the input pin type of the input path being stolen is set to +<span style="font-family:monospace">PIN_INPUT_LATCH</span>, then the ICEGATE +function is enabled for the corresponding <span style="font-family:monospace">CORE</span> +output of the PLL. +</p> + </body></html> |