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INTERNAL SPECIFICATIONS
157
Figure 4-61 Soft power down mode setting time chart (external ROM mode)
S1 S2 S3 S4 S5 S6
M1 or M2 M1
XTAL1
1
0
ALE
1
0
PSEN
PORT 0
1
0
PORT 1
1
0
PORT 2
1
0
PORT 3
1
0
W-PCON
1
0
*PCON-bit 1
1
0
SOFT POWER DOWN MODE
S6
PORT DATA
PORT DATA
FLOATING
PD SET CYCLE
PCLPCL PCL
PCH PCH
1
0
PCH
PORT DATA
1
0
IOCON-bit 0
PORT DATA
PORT DATA
PORT DATA
*ALF=“0”