AMD AMD5K86 - FIGURE 5-10. AHOLD-Initiated Inquire Hit to Shared or Exclusive Line

18524B/O-Mar1996
ClK
A31-A3
AMD~
AMD5116 Processor Technical Reference Manual
For an AHOLD inquire cycle to be recognized, AHOLD must
have been asserted continuously for two clocks at the time
EADS is asserted. AHOLD and BUFF can be asserted in con·
junction with each other without interfering with EADS recog-
nition, as long as the sampling criteria for at least one of the
signals (AHOLD or BUFF) is met.
~
i I
AlJS ~
AHOLD
AP
APCRR
BEJ-llEO
rnmv
BREQ
O/C
063-00
EADS
HIT
RITJiil
INV
M/lD
W!R
ClK
X
--+.J
\
I
I
I
Read
I
X
FIGURE 5-9. AHOLD-Initiated Inquire Miss
Bus Cycle Timing
\ '
\ I
K
I
i
I
\
I
t
I
x::t=:x
;
I
I
\..!..-J
,
!
I
I
I
,
,
I
: Inquire
5-159