Intel MCS48 User Manual page 184

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WAVEFORMS
INSTRUCTION FETCH
FROM EXTERNAL
PROGRAM MEMORY
^
»
ALE
PSEN
l
LL
BUS FLOATING
ADDRESS
)C
tec
L
V
FLOATING
V
V
FLOATING
V
INSTRUCTION
READ FROM EXTERNAL DATA
MEMORY
ALE
RD
J
L
FLOATING
BUS
FLOATING
^AdDRESsV^
/\
DATA
/\
FLOATING
WRITE TO
EXTERNAL DATA
MEMORY
ALE
WR
BUS
FLOATINGyADDRESSyFLOATINGX
DATA
^
FLOATING
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