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DS80C310_09 Datasheet, PDF (14/22 Pages) Dallas Semiconductor – High-Speed Microcontroller
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DS80C310
MOVX CHARACTERISTICS
PARAMETER
SYMBOL
Data Access ALE Pulse Width
tLHLL2
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
tAVLL2
tLLAX2
tRLRH
tWLWH
tRLDV
tRHDX
tRHDZ
ALE Low to Valid Data In
tLLDV
Port 0 Address to Valid Data In
tAVDV1
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
tAVDV2
tLLWL
tAVWL1
tAVWL2
tQVWX
tWHQX
tRLAZ
tWHLH
VARIABLE CLOCK
MIN
MAX
1.5tCLCL-5
2tCLCL-5
0.5tCLCL-5
tCLCL-5
0.5tCLCL-15
tCLCL-7
2tCLCL-5
tMCS-10
2tCLCL-5
tMCS-10
0
0.5tCLCL-14
tCLCL-8
tCLCL-9
2tCLCL-8
1.5tCLCL-10
2.5tCLCL-10
-14
2tCLCL-20
tMCS-20
tCLCL-5
2tCLCL-5
2.5tCLCL-28
tCLCL+tMCS-40
3tCLCL-22
2.0tCLCL+ tMCS -
25
3.5tCLCL-35
2.5tCLCL+ tMCS-
35
0.5tCLCL+5
tCLCL+5
tCLCL-11
2tCLCL-10
(Note 2)
0
tCLCL-5
10
tCLCL+9
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
STRETCH
(Note 1)
tMCS=0
tMCS>0
tMCS=0
tMCS>0
tMCS=0
tMCS>0
tMCS=0
tMCS>0
tMCS=0
tMCS>0
tMCS=0
tMCS>0
tMCS=0
tMCS>0
tMCS=0
tMCS>0
tMCS=0
tMCS>0
tMCS=0
tMCS>0
tMCS=0
tMCS>0
tMCS=0
tMCS>0
tMCS=0
tMCS>0
tMCS=0
tMCS>0
tMCS=0
tMCS>0
Note 1:
tMCS is a time period related to the stretch memory cycle selection. The following table shows the value of tMCS for each
stretch selection.
M2 M1 M0
MOVX CYCLES
tMCS
000
2 machine cycles
0
0
0
1 3 machine cycles (default) 4 tCLCL
010
4 machine cycles
8 tCLCL
011
5 machine cycles
12 tCLCL
100
6 machine cycles
16 tCLCL
101
7 machine cycles
20 tCLCL
110
8 machine cycles
24 tCLCL
111
9 machine cycles
28 tCLCL
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