diff --git a/README.md b/README.md
index a960eaa..28dd6ac 100644
--- a/README.md
+++ b/README.md
@@ -154,5 +154,7 @@ Test the prototype.
     [x] move 8 LEDs a bit down and right
     [x] let SD_CLK go to FPGA clock capable pin: swap SD_CLK and SD_D2 pins 
     [x] additional 2 differential lines for US2
-    [ ] additional US2 pins for pullup 1.5k and pulldown 15k
+    [x] additional US2 pins for pullup 1.5k
+    [x] additional US2 pins for pull up-down 15k
+    [ ] unified US2 pullup/down: resistor-diode nework for pullup 1.5k and pulldown 15k
     [ ] clear silkscreen mess with Cx under FPGA