DS80C310 Maxim, DS80C310 Datasheet - Page 14

• Manufacturer Part Number: DS80C310
• Description: The DS80C310 is a fast 80C31/80C32-compatible microcontroller
• Manufacturer: Maxim

MOVX CHARACTERISTICS
Data Access ALE Pulse Width
Port 0 Address Valid to ALE Low
Address Hold after ALE Low for
MOVX Write
RD Pulse Width
WR Pulse Width
RD Low to Valid Data In
Data Hold after Read
Data Float after Read
ALE Low to Valid Data In
Port 0 Address to Valid Data In
Port 2 Address to Valid Data In
ALE Low to RD or WR Low
Port 0 Address to RD or WR Low
Port 2 Address to RD or WR Low
Data Valid to WR Transition
Data Hold after Write
RD Low to Address Float
RD or WR High to ALE High
Note 1:
PARAMETER
t
stretch selection.
MCS
M2
is a time period related to the stretch memory cycle selection. The following table shows the value of t
0
0
0
0
1
1
1
1
M1
0
0
1
1
0
0
1
1
M0
0
1
0
1
0
1
0
1
3 machine cycles (default)
MOVX CYCLES
2 machine cycles
4 machine cycles
5 machine cycles
6 machine cycles
7 machine cycles
8 machine cycles
9 machine cycles
SYMBOL
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
AVWL1
AVWL2
t
AVDV1
AVDV2
AVLL2
LLAX2
WLWH
QVWX
WHQX
LHLL2
WHLH
RHDX
LLWL
RLRH
RLDV
RHDZ
LLDV
RLAZ
14 of 22
0.5t
0.5t
1.5t
2.5t
1.5t
0.5t
2t
12 t
16 t
20 t
24 t
28 t
2t
2t
2t
2t
t
t
t
4 t
8 t
t
t
t
t
t
CLCL
MCS
MCS
VARIABLE CLOCK
t
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
MIN
CLCL
CLCL
CLCL
CLCL
MCS
CLCL
CLCL
CLCL
CLCL
-14
CLCL
CLCL
0
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
0
0
-10
-10
-11
-5
-7
-8
-9
-10
-5
-5
-5
-5
-8
-15
-14
-10
-10
-5
-5
2.0t
2.5t
t
CLCL
2.5t
3.5t
0.5t
2t
3t
(Note 2)
2t
t
t
t
t
CLCL+
CLCL+
MAX
MCS
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
+t
CLCL
CLCL
CLCL
25
35
10
MCS
-20
+5
+9
-20
-5
-22
-5
t
t
-28
-35
+5
MCS
MCS
-40
-
-
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
MCS
STRETCH
for each
(Note 1)
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
DS80C310
MCS
MCS
MCS
MCS
MCS
MCS
MCS
MCS
MCS
MCS
MCS
MCS
MCS
MCS
MCS
MCS
MCS
MCS
MCS
MCS
MCS
MCS
MCS
MCS
MCS
MCS
MCS
MCS
MCS
MCS
=0
>0
=0
>0
=0
>0
=0
>0
=0
>0
=0
>0
=0
>0
=0
>0
=0
>0
=0
>0
=0
>0
=0
>0
=0
>0
=0
>0
=0
>0