IA8237

The IA8237 is a programmable direct memory access (DMA) mega-function designed to be unctionally equivalent to the Intel 8237A and Harris 82C37A devices. The A8237 controls data ransfers between memory and peripherals, memory-to-memory transfers, and block memory nitialization. Four independently programmable channels of the IA8237 are available, and requests may be enerated via hardware or software.