MSM80C154S/83C154S/85C154HVS

5.10 Port Output Timing

1)One machine cycle instruction output timing

 

 

M1

 

 

 

 

 

 

M1

 

 

 

S1

S2

S3

S4

S5

S6

S1

S2

S3

S4

S5

S6

S1

1

 

 

 

 

 

 

 

 

 

 

 

 

XTAL1

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

ALE

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

 

 

 

 

 

 

 

 

 

 

 

1M CYCLE OP

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

W-PORT

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

 

 

 

 

 

 

 

 

 

 

1

PORT OLD DATA

 

 

PORT NEW DATA

 

 

PORT-OUT

 

 

 

 

0

 

 

 

 

 

 

 

 

 

 

 

 

INC data address DEC data address MOV data address, A ORL data address, A ANL data address, A XRL data address, A

XCH A, data address CPL bit address CLR bit address SETB bit address

Figure 5-15 One machine cycle instruction port output time chart

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Sonic Alert msm80154s, msm83c154s, msm85c154hvs user manual Port Output Timing, One machine cycle instruction output timing