notes

2025-10-20 17:03:59 +02:00
parent e7fdd945b5
commit ebe0720627
6 changed files with 85 additions and 0 deletions
--- a/notes/monochrome-video.md
+++ b/notes/monochrome-video.md
@@ -0,0 +1,11 @@
+# Monochrome Video
+- need 307_200 bits => 38_400/0x9600 Bytes 
+- 8K character memory
+
+- 1x 64K RAM
+- split in half
+- each half into page (0x0000 - 0x4AFF)
+- map character memory into top (0x6000 - 0x7FFF)
+
+## Design
+- derive CS from bank register, leave LSB free -> wire to MSB of VRAM address