User's Manual

INTERNAL SPECIFICATIONS
167
Figure 4-67 Hard power down mode setting and I/O floating time chart (internal ROM mode)
S1 S2 S3 S4 S5 S6
M1 or M2 M1
XTAL1
1 0
ALE
1 0
PSEN PORT 0 PORT 1
1 0
PORT 2
1 0
PORT 3
1 0
PCON-bit 6
1 0
HARD POWER DOWN MODE
S6
PORT DATA PORT DATA
HPD SET CYCLE
1 0 1 0
IOCON-bit 0
*ALF=“1”
S1
PORT DATA PORT DATA
FLOATING FLOATING FLOATING FLOATING
*HPDI [P3.5]
1 0
1 0