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@@ -10,7 +10,7 @@ The CH32V305 and CH32V307 are interconnected microcontrollers, based on 32-bit R
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 ### Features
-- RISC-V4F processor, max 144MHz system clock frequency;
+- RISC-V4F processor, max 144MHz system clock frequency, RV32IMAFC instruction set;
 - Single-cycle multiplication and hardware division, hardware float point unit (FPU) ;
 - 64KB SRAM，256KB Flash;
 - Supply voltage: 2.5V/3.3V, GPIO unit is supplied independently;