M1543: Desktop South Bridge The M1543 is a bridge between PCI and ISA bus, providing full PCI and ISA compatible functions. The M1543 has Integrated Super I/O( Floppy Disk Controller, 2 serial ports/1 parallel port ), System Peripherals (ISP) (2 x 82C59 and Serial interrupt, 1 x 82C54), advanced features (Type F and Distributed DMA) in the DMA controller (2 X 82C37), PS2 Keyboard/Mouse controller, 2-channel dedicated IDE Master Controller with Ultra-33 specification, System Management Bus (SMB), and 2 OpenHCI 1.0a USB ports PDF Datasheet

SB_M1543.pdf
SB_M1543C.pdf

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