ID82C237 - CMOS High Performance Programmable DMA Controller
The 82C237 is a modified version of the 82C37A.
The 82C237 is fully software and pin for pin compatible with the 82C37A but provides an additional mode for 16-bit DMA transfers, as well as enhanced speed.
Each channel may be individually programmed for 8-bit or 16-bit data transfers.
The 82C237 contr
ID82C237 Features
* for flexible operation. The 82C237 is designed to be used with an external address latch, such as the 82C82, to demultiplex the most significant 8 bits of address. An additional latch is required to temporarily store the most significant 8 bits of data if 16-bit memory-to-memory transfers are desired.
