Differences

This shows you the differences between two versions of the page.

--- memory_map [2021/09/05 18:02] – [External bus configuration] simer
+++ memory_map [2021/09/05 18:09] – [Timers] simer
@@ Line 90: / Line 90: @@
 | 3D1C	  | Scanline counter         |
-Timebase values:
+Timebase setup values:
+  * Bits 3-2: TMB2 frequency
-  - 00: TMB2 = 128Hz, TMB1 = 8Hz
+    * 00 - 128 Hz
-  - 01: TMB2 = 256Hz, TMB1 = 16Hz
+    * 01 - 256 Hz
-  - 10: TMB2 = 512Hz, TMB1 = 32Hz
+    * 10 - 512 Hz
-  - 11: TMB2 = 1024Hz, TMB1 = 64Hz
+    * 11 - 1024 Hz
+  * Bits 1-0: TMB1 frequency
+    * 00 - 8 Hz
+    * 01 - 16 Hz
+    * 10 - 32 Hz
+    * 11 - 64 Hz
 ===== Timer A =====