cdsParameters.md

@@ -59,11 +59,18 @@ Elements in the parameter list should be separated by a new line (\<enter\>).
         - `avx2`
         - `sse3`
     - Enables vectorization extensions in the compiler
-- `clock_div=<val>
+- `clock_div=<val>`
    - This is the number of samples to process during a cycle at the model rate.
    - The fast-IOP, `rate=512K` uses a `clock_div=8`. 524288/8 = 65536 so user models get filtered/decimated data at the default expected IOP rate.
 - `optimizeIO=1`
     -  When set, the IOP will not preload the DAC FIFOs with the usual 2 samples at startup. This can provide for lower phase delay for 2 clock cycles, or 30 usec at the typical 64K IOP rate.
+- `ipc_rate=<VAL>`
+    - This can be used to lower the IPC rate of models below their model rate.
+    - The `ipc_rate` must be less than or equal to the model rate.
+    - For model rates faster than 65536, the `ipc_rate` must be passed in as a parameter (set to <= 65536).
+- `time0_delay_us=<VAL>`
+    - This value is subtracted off the time 0 calculation for IOP models. 
+    - This is useful for models that run on front ends with an IO chassis 
 
 # Other Fields
 - `no_sync=1` 
@@ -106,6 +113,9 @@ Elements in the parameter list should be separated by a new line (\<enter\>).
     - Configures the ADC to used an internally generated 64K clock
 - `no_zero_pad=1` 
     - Causes the DAC output to not be zero padded for filtering. Instead the DAC output value is repeatedly run thru the filter `clock_div` time.
+- `userspacegps=1`
+    - TODO 
+
 # Deprecated Fields 
 - `site`
     - Use the `ifo=` parameter instead.
@@ -124,3 +134,6 @@ Elements in the parameter list should be separated by a new line (\<enter\>).
     - Removed
 - `sync`
     - Removed
+- `lhomid`
+    - Adds an additional second to the system time on startup.
+    - Was used for LHO pemmid
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