XTAL1
1
0
ALE
1
0
PSEN
1
0
PORT 0,1,2,3
PIN DATA
1
0
CPU DATA
SAMPLED
1
0
PIN DATA STABLE
Figure 2-14 MSM80C154S MOVX @DPTR, A execution
Figure 2-15 MSM80C154S MOV direct, PORT[0, 1, 2, 3] execution
(5) MOVX @DPTR, A
(6) MOV direct, PORT [0, 1, 2, 3] execution