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80C86 Datasheet(PDF) 21 Page - Intersil Corporation

Part # 80C86
Description  CMOS 16-Bit Microprocessor
PDF  37 Pages
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Manufacturer  INTERSIL [Intersil Corporation]
Direct Link  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

80C86 Datasheet(HTML) 21 Page - Intersil Corporation

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21
FN2957.3
January 9, 2009
FIGURE 7B. BUS TIMING - MINIMUM MODE SYSTEM
NOTE:
Two INTA cycles run back-to-back. The 80C86 local ADDR/DATA bus is floating during both INTA cycles. Control signals are shown for the
second INTA cycle.
Waveforms (Continued)
t4
t3
t2
t1
TW
TDVCL
TCLDX1 (7)
TWHDX
TCVCTX
TCHCTV (30)
TCLAV
TCLAZ
TCHCTV
(31) TCVCTX
TCVCTV
(17)
(26)
(27)
(29) TCVCTV
DATA OUT
AD15-AD0
INVALID ADDRESS
CLK (82C84A OUTPUT)
WRITE CYCLE
(
RD, INTA,
DT/
R = VOH)
AD
15-AD0
DEN
WR
INTA CYCLE
(SEE NOTE)
(
RD, WR = VOH
BHE = VOL)
AD
15-AD0
DT/
R
INTA
DEN
AD
15-AD0
SOFTWARE
HALT -
DEN, RD,
WR, INTA = VOH
DT/
R = INDETERMINATE
SOFTWARE HALT
(29) TCVCTV
POINTER
TCL2CL1
(5)
t
W
TCLAV
TCLDV
TCLAX
(18)
TCLDX2
(29)
(28)
TWLWH
(38)
(29) TCVCTV
(19)
TCVCTX
(31)
(6)
(30)
(31)
(17)
TCH1CH2
(4)
80C86



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