diff --git a/Sming/Arch/Esp32/Components/driver/hw_timer.rst b/Sming/Arch/Esp32/Components/driver/hw_timer.rst
index 14fae3de0f..979e853f93 100644
--- a/Sming/Arch/Esp32/Components/driver/hw_timer.rst
+++ b/Sming/Arch/Esp32/Components/driver/hw_timer.rst
@@ -3,25 +3,6 @@ hw_timer: Hardware Timers
 
 Driver for hardware timers.
 
-Variables
----------
-
-.. envvar:: USE_US_TIMER
-
-   0 (default): Use default /256 prescale for Timer2
-   1: Use /16 prescale
-   
-   The following functions depend on Timer2:
-   - NOW() return value, the Timer2 tick count
-   - Software timers
-   - System time
-
-   Software timers are driven by Timer2, which by default uses a /256 prescale
-   providing a resolution of 3.2us and a range of 1' 54".
-
-   Enabling this setting increases the resolution to 200ns but reduces the maximum
-   software timer to 7" 9.5s.
-
 API Documentation
 -----------------