NM95MS16VBHX Fairchild Semiconductor, NM95MS16VBHX Datasheet

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NM95MS16VBHX

Manufacturer Part Number
NM95MS16VBHX
Description
Plug and Play Front End Devices for ISA-Bus Systems [Life-time buy]
Manufacturer
Fairchild Semiconductor
Datasheet
© 1998 Fairchild Semiconductor Corporation
NM95MS16
Plug and Play Front-End Devices for
ISA-BUS Systems
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.
Block Diagram
Windows
®
95 is a registered trademark of Microsoft Corporation.
From
Bus
ISA
Osc.
Rstdrv
Address
Control
From
Bus
ISA
& Control
Machine
Decoder
State
DACKx*
LDRQx
LIRQx
Address
Control
1
Features
EEPROM
Complete Implementation of Plug and Play Standard
— Direct interface to ISA bus
Two modes of operation
— DMA mode
— Extended Interrupt mode (Windows
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
Function
Register
Support
Module
Block
Logic
compatible)
IOCS<0:2>*
LDACKx*
IRQx
DRQx
MICROWIRE Port
Buffer
Data
SD<0:7>
To
ISA
Bus
®
95 logo
ISA
Bus
www.fairchildsemi.com
July 1998
DS012601-1

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NM95MS16VBHX Summary of contents

Page 1

... Address Control From ISA Bus ® Windows registered trademark of Microsoft Corporation. © 1998 Fairchild Semiconductor Corporation Features Complete Implementation of Plug and Play Standard — Direct interface to ISA bus Two modes of operation — DMA mode — Extended Interrupt mode (Windows compatible) ...

Page 2

Connection Diagrams Commercial Temperature Range ( +70 C) IRQOUT4 IRQOUT3 IRQOUT2 IRQOUT1 IRQOUT0 ISADRQ0/IRQOUT6 ISADRQ1/IRQOUT7 ISADACK0*/SA12 ISADACK1*/SA13 CS SK SA0 IRQOUT4 IRQOUT3 IRQOUT2 IRQOUT1 IRQOUT0 ISADRQ0/IRQOUT6 NC ISADRQ1/IRQOUT7 ISADACK0*/SA12 ISADACK1*/SA13 CS SK SA0 ...

Page 3

Connection Diagrams (Continued) Signals SA<11:0> IORD* IOWR* AEN SD<7:0> OSC (Note 1) RSTDRV CS SK IRQOUT<5:0> IRQIN<1:0> DRQin/SA<15> DACKOUT* /IOCS2* ISADRQ<1:0>/IRQOUT<7:6> ISADACK<1:0>*/SA<13:12> IOCS<1:0>* IRQIN<1>/SA<14> *Signal name with a “*” means its an active low signal. Note 1: “OSC” ...

Page 4

Pinout Details for the NM95MS16 Mode 00 = DMA Mode; Mode 01 = Extended Interrupt Mode TQFP Pin DMA Mode 1 RSTDRV 2 IOCS1* 3 IOCS0* 4 IORD* 5 IOWR DRQIN 8 DACKOUT* 9 GND 10 ...

Page 5

Absolute Maximum Ratings Ambient Storage Temperature All Input or Output Voltages with Respect to Ground Lead Temperature (Soldering, 10 seconds) ESD Rating DC Electrical Characteristics Symbol Parameter I Active Power Supply Current CCA I Input Leakage Current LI I Output ...

Page 6

Timing Diagrams AEN SA[0:11] IORD* IOWR* READ DATA SD[0:7] WRITE DATA SD[0:7] Decode Delay for Chipselect Generation SA[0:11] IOCS[0:1]* (addr decode only) IORD* IOWR* IOCS[0:1]* (Qualified with CMD) Propagation Delay for IRQ/DRQ/DACK IRQin DRQin ISADACK IRQout DRQout DACKout INTRODUCTION The ...

Page 7

INTRODUCTION (Continued) 2 RSTDRV OSC SA[0:11] 12 Extended Interrupt Mode In the Ext.Int. mode, support is provided for: 1. Two on-board interrupt request lines switchable to any eight IRQ lines on the ISA bus. 2. Three programmable I/O chip selects ...

Page 8

INTRODUCTION (Continued) EEPROM Programming The entire 6 kbits of EEPROM can be programmed through the ISA bus. The EEPROM can be programmed by putting the device (NM95MS16) in the Config. state (as defined in the PnP standard). Under this state ...

Page 9

Physical Dimensions inches (millimeters) unless otherwise noted 0.750 - 0.756 [19.05 - 19.20] Pin 1 IDENT 0.050 TYP [1.27] 0.600 TYP [15.24] 52-Lead Molded Plastic Leaded Chip Carrier 0.013–0.021 TYP [0.33–0.53] 0.045 ...

Page 10

... Life Support Policy Fairchild's products are not authorized for use as critical components in life support devices or systems without the express written approval of the President of Fairchild Semiconductor Corporation. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support ...

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