CRT9006-135
Description
The SMC Single Row Buffer (SRB) provides a low cost solution to memory contention between the system processor and CRT controller in video display systems. The SRB is a RAM-based buffer which is loaded with character data from system memory during the first scan line of each data row.
Key Features
- Low Cost Solution to CRT Memory Contention Problem
- Provides Enhanced Processor Throughput for CRT Display Systems
- Provides 8 Bit Wide Variable Length Serial Memory
- Permits Active Video on All Scan Lines of Data Row
- Dynamically Variable Number of Characters per Data Row- ... 64,80, 132, ... up to a Maximum of 135
- Cascadable for Data Rows Greater than 135 Characters
- Stackable for Invisible Attributes or Character Widths of Greater than 8 Bits
- Three-State Outputs
- 4MHz Typical Read/Write Data Rate
- Static Operation
