95MS18 Datasheet | Fairchild Semiconductor

Description The NM95MS18 is an industry standard ISA Plug-n-Play controller that also supports Non-Plug-n-Play platforms like DOS, WIN3.1x, Windows-NT and Unix. In additon to being pletely pliant to ISA Pn P Specification (Ver 1.0a), NM95MS18 integrates a total of 4Kbit of onchip EEPROM for both Pn P Resource data as well as non-Pn P configuration data to provide a true single chip solution. NM95MS18 supports one logical device offering a flexible choice of DMA, Interrupt and I/O address decoding features within a single chip. NM95MS18 is implemented using Fairchild’s Advanced CMOS process and operates on a single power supply. Features s Fully pliant with industry standard ISA Pn P specification (Ver. 1.0a) s Supports Non-Pn P platforms like WINDOWS-NT, UNIX, DOS/WIN3.1x - No configuration utilities needed s Supports Non-Pn P "legacy" mode - Can be programmed to power-up in 31 settings s On-chip "Write-Protected" EEPROM for: - Pn P Resource data (2Kbits) - 31 Power-on "legacy" configurations (2Kbits) s Two modes of operation: - DMA Mode - Extended Interrupt Mode (supports PC-97 requirements) s Configurable Interrupt types: - TTL O/P - Open Drain O/P s Supports Wire-AND I/O chipselects s Fully patible with NM95MS16 s Available in 52-Pin PLCC Package Block Diagram ISA BUS RSTDRV From Switches NPNP SW[0:4] Input Sense Logic Test Mode Logic SA[0:11] IORD IOWR AEN Pn P Cycle Detection Logic IRQOUT[0:7] SD[0:7] ISADRQ[0:1] ISADACK[0:1] SA[0:15] IORD IOWR AEN Data Buffer State Machine Registers EEPROM Controller I/F IRQ IRQIN[0:1] Switch Logic DMA Switch Logic DRQIN DACKOUT ADDRESS DECODER IOCS[0:2] DS500033-1 © 1998 Fairchild Semiconductor...