diff --git a/README b/README
index 4f33b968..15c34b78 100644
--- a/README
+++ b/README
@@ -7,10 +7,12 @@ various ARM Cortex-M3 microcontrollers.
 
 Currently (at least partly) supported microcontrollers:
 
- - ST STM32F1 series
- - ST STM32F2 series
- - ST STM32F4 series
+ - ST STM32F0xx/F1xx/F2xx/F30x/F37x/F4xx/L1xx series
+ - Atmel SAM3A/3N/3S/3U/3X series
  - NXP LPC1311/13/42/43
+ - Stellaris LM3S series (discontinued, without replacement)
+ - TI (Tiva) LM4F series (continuing as TM4F, pin and peripheral compatible)
+ - EFM32 Gecko series (only core support)
 
 The library is written completely from scratch based on the vendor datasheets,
 programming manuals, and application notes. The code is meant to be used