perhaps, it is originally designed to run in parallel mode or serial mode. However, parallel mode is the only one supporting what they call "DMA" Mode, although it isn't truely Direct Memory Access. I don't think a chip as general as the Max232 would accomplish what I'm trying to do. I think in my case I would need a microcontroller like a PIC and program it to buffer my own serial protocol and write to the screen.
In short, I never bothered with the serial mode of the screen although it could be superior. I got it working in Parallel, it refreshes "fast enough" and that is good enough for me.
BTW, what is that cat eating? It looks like a child's arm or something.