UM8312 Overview
SUMO UM8312 Double Row Buffer(DRB).
UM8312 Key Features
- Low cost solution to CRT memory contention problem
- Provides enhanced processor throughput for CRT
- Replaces shift registers or several RAM and counter
- Permits display of one data row while next data row is
- Data may be written into buffer at less than the video
- Permits active video 'on all scan lines of data row
- Dynamically variable numbe~ of characters per data
- Cascadab Ie for data rows greater than 135 characters
- Stackable for "I nvisible Attributes" or character widths
- Three-state outputs