83C51KB データシートの表示（PDF） - Intel
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83C51KB Datasheet PDF : 19 Pages
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83C51KB HIGH PERFORMANCE KEYBOARD MICROCONTROLLER
6.3 External Program Memory Read Cycle Waveform
ALE
PSEN#
PORT 0
PORT 2
TLHLL
TLLPL
TAVLL
TLLAX
A0 - A7
TLLIV
TPLPH
TPLIV
TPLAZ
TPXIX
Instruction In
TAVIV
A8 - A15
TPXIZ
A0 - A7
A8 - A15
A4254-01
6.4 External Program Memory Read Cycle External Data Memory Read Cycle Waveform
ALE
PSEN#
RD#
PORT 0
PORT 2
TLHLL
TLLDV
TLLWL
TRLRH
TAVLL
TLLAX
TRLDV
TRLAZ
TRHDX
A0-A7 from RI or DPL
Data In
TAVWL
TAVDV
P2.0 - P2.7 or A8 - A15 from DPH
TWHLH
TRHDZ
A0 - A7 from PCL
Instr. In
A8 - A15 from PCH
A4255-01
17
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