Genicom MatrixPrinter LA36 User Manual
The main controller circuit of the printer –– the MB90706 MPU –– has a bus connected to 4M-bit ROM, two-
16M-bit ROMs, 128K word x 16-bit RAM, and a control LSI. Firmware functions are built into the 4M-bit
ROM and one of the two 16M-bit ROMs is reserved for optional CG data.
Figure 5.22 Memory configuration
Main firmware ROM has a capacity of 4M bits and contains resident emulation programs.