General Description

The NM95MS16 is the smaller of a family of devices designed to provide complete Plug and Play Capability for ISA bus systems. The NM95MS16 includes the necessary state machine logic to manage the Plug and Play protocol in addition to switches for steering Interrupt and DMA requests. It also features a built-in 2 kbits of serial EEPROM for storing the resource data specified in the Plug and Play Standard. In addition, 4 kbits of EEPROM is available for use by other on-board logic. This device provides a “truly complete” single-chip solution for implementing Plug and Play on ISA-Bus Adapter cards. The NM95MS16 supports one logical device with a flexible choice of DMA/IRQ selection and I/O Chipselect generation as well as offering 16-bit addressing in Mode 1.

NM95MS16 is implemented using Fairchild’s Advanced CMOS process and operates single power supply. The NM95MS16 is available in a 48-pin TQFP package and 52-pin PLCC package.

Features

■ Complete Implementation of Plug and Play Standard

— Direct interface to ISA bus

■ Two modes of operation

— DMA mode

— Extended Interrupt mode (Windows® 95 logo compatible)

■ 6 or 8 ISA bus interrupt lines and 2 DRQ/DACK lines supported

■ On-chip EEPROM for resource request table

■ Additional 4 kbits of on-chip EEPROM available for external access

■ 24 mA Drivers for Data outputs

■ Complete compliance to ISA PnP specification (Ver. 1.0A)

■ 48-Pin TQFP, and 52-Pin PLCC Packages