diff --git a/firmware/Peripherals.md b/firmware/Peripherals.md
index 21ec551..4e267bc 100644
--- a/firmware/Peripherals.md
+++ b/firmware/Peripherals.md
@@ -45,13 +45,18 @@
 ```
 [osc8m] --> [glck0] |--> [gps usart]
                     |--> [tc5]
+                    |--> [adc]
+                    |--> [extint]
 
 
                      |\
          [osc8m]--> 0| |
                      | | --> [glck1] |--> [tc0, telemetry tick]
-tcxo --> [xosc] --> 1| |             |--> [tc2, count tcxo]
+tcxo --> [xosc] --> 1| |             |--> [tc2, count tcxo] <-- gps timepulse
                      |/              |--> [glck7] --> [tc5] --> si_gpio1
                       |
                  *USE_XOSC*
+
+
+[osculp32k] --> [gclk4] --> [wdt]
 ```