HP 9800 SERIES

9-10 9845B/C Mainframe Diagrams
PPU
Low Byte
ROMs
PPU RAM/ROM (PRR)
A27/29
Assembly
1 These ROMs are different when A27 is used with the 98780A Enhanced Graphics CRT
Low Byte
ROMs
LPU RAM/ROM (LRR)
A281A46
Assembly
High Byte ROMs
High Byte ROMs