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| DS80C320 Datasheet, PDF (28/38 Pages) Dallas Semiconductor – High-Speed/Low-Power Micro | |||
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DS80C320/DS80C323 High-Speed/Low-Power Microcontrollers
MOVX CHARACTERISTICSâDS80C323
PARAMETER
SYMBOL
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 Valid to RD
or WR Low
Port 2 Address Valid 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
tRLRH
tWLWH
tRLDV
tRHDX
tRHDZ
tLLDV
tAVDV1
tAVDV2
tLLWL
tAVWL1
tAVWL2
tQVWX
tWHQX
tRLAZ
tWHLH
VARIABLE CLOCK
MIN
2tCLCL-11
tMCS-11
2tCLCL-11
tMCS-11
0
0.5tCLCL-18
1.5tCLCL-11
tCLCL-10
2tCLCL-10
1.5tCLCL-27
2.5tCLCL-25
-14
tCLCL-13
tCLCL-15
2tCLCL-13
-1
tCLCL-5
MAX
2tCLCL-32
tMCS-36
tCLCL-5
2tCLCL-7
2.5tCLCL-43
1.5tCLCL-45+tMCS
3tCLCL-40
2tCLCL-42+tMCS
3.5tCLCL-58
2.5tCLCL-59+tMCS
0.5tCLCL+7
1.5tCLCL+8
(Note 5)
14
tCLCL+16
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
STRETCH
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: 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
0
0
0
2 machine cycles
0
0
0
1
3 machine cycles (default)
4 tCLCL
0
1
0
4 machine cycles
8 tCLCL
0
1
1
5 machine cycles
12 tCLCL
1
0
0
6 machine cycles
16 tCLCL
1
0
1
7 machine cycles
20 tCLCL
1
1
0
8 machine cycles
24 tCLCL
1
1
1
9 machine cycles
28 tCLCL
28 of 38
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