diff --git a/pgusinit/README.md b/pgusinit/README.md
index 237ff68..a2ee8e7 100644
--- a/pgusinit/README.md
+++ b/pgusinit/README.md
@@ -25,6 +25,7 @@ Firmware files that come with the releases:
 * `pg-gus.uf2` - GUS emulation
 * `pg-adlib.uf2` - AdLib emulation
 * `pg-mpu.uf2` - MPU-401 with intelligent mode emulation
+* `pg-tandy.uf2` - Tandy 3-Voice emulation
 
 ### GUS emulation mode
 
@@ -46,10 +47,10 @@ specified in ULTRASND.
 See the Compatibility List wiki for notes on programs that require these
 options to be set: https://github.com/polpo/picogus/wiki/Compatibility-list
 
-### AdLib and MPU-401 emulation modes
+### AdLib, MPU-401, and Tandy emulation modes
 
 * `/p x` - sets the base port of the emulated card to x. Defaults to 388 for
-  AdLib and 330 for MPU-401.
+  AdLib, 330 for MPU-401, and 2C0 for Tandy.
 
 ## Compiling