User's Manual

MSM80C154S/83C154S/85C154HVS
150
Figure 4-55 Idle mode setting time chart (external ROM mode)
S1 S2 S3 S4 S5 S6
M1 or M2
S1 S2 S3 S4 S5 S6
M1
S1 S2 S3 S4 S5 S6
M1
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
W-PCON
1 0
*PCON-bit 0
1 0
IDLE MODE
S6
PORT DATA PORT DATA
FLOATING
IDLE SET CYCLE
PCLPCL PCL
PCH PCH PCH