UM8237A-4 Overview
The UM8237A Direct Memory Access Controller (DMAC) is a peripheral interface circuit for microprocessor systems. It is designed to improve system performance by allowing external devices to directly transfer information from the system memory. Memory-tb-memory' transfer capability is also provided.
UM8237A-4 Key Features
- Enable/Disable control of individual DMA requests
- Four independent DMA channels
- Independent autoinitialization of all channels
- Memory-to-memory transfers
- Memory block initialization
- Single 5V power supply
- High performance: transfers up to 1.6M bytes/second
- Directly expandable to any number of channels
- End of process input for terminating transfers
- Software DMA requests