Added

- USB datasheets
- RTC to HRS
Updated 
- CM4 System block

1_Design/SCH/03_Schemtic_Top.kicad_sch

@@ -3318,6 +3318,26 @@
 				(justify left top)
 			)
 		)
+		(pin "USB_D-" bidirectional
+			(at 73.66 76.2 0)
+			(effects
+				(font
+					(size 1.27 1.27)
+				)
+				(justify right)
+			)
+			(uuid "8b380eb5-8d54-453e-96c7-64303376d374")
+		)
+		(pin "USB_D+" bidirectional
+			(at 73.66 73.66 0)
+			(effects
+				(font
+					(size 1.27 1.27)
+				)
+				(justify right)
+			)
+			(uuid "da6419c5-65ea-4e99-aed4-111c65f912fb")
+		)
 		(instances
 			(project "E1001_KG-VRS_Carrier_PCBA"
 				(path "/0a39b631-5a77-4664-a8f2-0dd8d62fbc5e/cec39ed2-99af-4908-8ea2-fcb82f236403"