User's Manual

MSM80C154S/83C154S/85C154HVS
48
Figure 3-7 Reset release time chart (internal ROM mode)
S1 S2 S3 S4 S5 S6 S1 S2 S3 S4 S5 S6
M1
S1 S2 S3 S4 S5 S6
M2
S1 S2 S3 S4 S5 S6
M1
XTAL1
1 0
ALE
1 0
PSEN
1 0
PORT 0
1 0
PORT 1
1 0
PORT 2
1 0
PORT 3
1 0
RESET
1 0
CPU RESET CONTROL
1 0
RESET EXCECUTE
1 0
FLOATING
PORT DATA = 1 PORT DATA = 1 PORT DATA = 1
CPU RESET EXCECUTE CYCLE
S6
EXCECUTE CYCLE
M1