COPROCESSOR HARDWARE INTERFACE

ADSO# r-

CLOCK

GENERATOR

CLK2 .....

ClK

RESET

ADS#

 

 

t

 

 

 

HLDA

:.....-.

 

 

DIC#

 

RESET

lOCK#

:

 

 

~ READY#

 

-

 

BEO#-BE3#

--

--

 

 

i..-... .....,

CLK2

 

 

BS16#

MIIO#

--

 

NA#

A31

--

HOLD

A30-A3

 

ADS#

--

INTR

1386'"OX A2

--

NMI

WIR#

 

 

 

00-031

 

BUSY#

ERROR#

PEREQ

FROM OTHER PERIPHERALS

~>-

CKM

i387'"OX NPX

CLOCK387CLK2

GENERATOR (OPTIONAL)

386ClK2

RESET IN

READY#

WAIT STATE - GENERATOR

(OPTIONAL)READYO# AND OR lOGIC

i387'"OX

MATH COPROCESSOR

NPS1#

NPS2

CMD#J

WIR#

ADS#STEN

32

D~-D31

BUSY#

ERROR#

PEREQ

231732i5-1

Figure 5-1. InteI386'"OX CPU System with Intel387'MOX Math Coprocessor

5-3

Page 85
Image 85
Intel manual InteI386OX CPU System with Intel387MOX Math Coprocessor