M82380

Storage Temperature . . . . . . . . . -65 to +150
Supply Voltage with Respect
to V_SS . . . . . . . . . . . . . . . . . . . . . . -0.5V to +6.5V
Voltage on any other Pin. . . . .-0.5V to V_CC +0.5V
NOTE:
Stress above those listed above may cause permanent damage to the device. This is a stress ratingonly and functional operation at these or any other conditions above those listed in the operational sections of this specification is not implied.

Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Although the M82380 contains protective circuitry to reset damage from static electric discharges, always take precautions against high static voltages or electric fields.

The M82380 is a multi-function support peripheral that integrates system functions necessary in an i386 processor environment. It has eight channels of high performance 32-bit DMA with the most efficient transfer rates possible on the i386 microprocessor bus. System support peripherals integrated into the M82380 provide Interrupt Control, Timers, Wait State generation, DRAM Refresh Control, and System Reset logic.

The M82380's DMA Controller can transfer data between devices of different data path widths using a single channel. Each DMA channel operates independently in any of several modes. Each channel has a temporary data storage register for handling non-aligned data without the need for external alignment logic.