UM8321
UM8321 is CRT Video Attributtes Controller manufactured by UMC.
Features
- On chip attributes logic Reverse video Character blank Character blink Underline Full/half intensity
- Four modes of operation Wide graphics Thin graphics Character mode without underline Character mode with underline
- On Chip logic for double height double width characters
- Accepts scan line information in parallel or serial format
General Description
The UM8321 Video Attributes Controller (VAC) is an n-channel Ma S/LSI device containing graphics logic, attributes logic, data and attributes latches, cursor control and a high speed video shift register. A character generator ROM and a CRT Video attributes controller UM8321 provide all of the major circuitry for the display portion of a CRT video terminal.
The UM8321 serial video output may be connected directly to 3 CRT monitor's video input.
The UM8321 attributes include: reverse video, underline, character blank, character blink, and full/half intensity selection. In addition. When used in...