Intel 80C188XL - Manual (Page 299)

MATH COPROCESSING
11-14
Figure 11-4. 80C187 Exception Trapping via Processor Interrupt Pin
INT x
CLKOUT
D15:0
CMD1
CMD0
PEREQ
BUSY
ALE
A19:A16
AD15:0
RESET
CKM
NPS2
Q D
Q D
EN
D15:0
A19:0
A2
A1
80C187
RESET
80C186
Modular Core
BUSY
PEREQ
'74
'74
CLK
Latch
ERROR
NPWR
WR
RD
NCS
CS x
C
Q
S
ERROR
NPS1
NPRD
C
S
A
d
d
r
e
s
s
A1531-0A