
3.6 Pin Status in Sleep, Stop, Hold and Reset Modes
229
3.6 Pin Status in Sleep, Stop, Hold and Reset Modes
Tables 3.6.1 and 3.6 show pin status in sleep, stop, hold and reset modes, when the MB90660A is in
single-chip mode.
In the MB90660A series, pull-up resistor is disconnected in stop mode at pins for which pull-up options
are selected (pins of circuit types B and E in the “Pin Function Description”). Note, however, that pull-up
resistor is not disconnected in stop mode for the P44-P47, RSTX and DTTI pins (pins of circuit type D in
the “Pin Function Description”).
Table 3.6.1 Pin Status in Single Chip Mode
Note 1:
Because the P47 to P44 pins are always in input status, either pull-up or pull-down pin processing
should be applied to this port when not in use.
Note 2:
In this mode output pins retain their immediately prior output level, and input pins are input-
disabled. Immediately prior output level for internal peripheral resources means output according
to settings made for that resource, and for ports means that the port output signal level is retained.
Input disabled means that the first input gate nearest the pin is in enabled state but that the internal
circuits are not activated, so that the level of the pin signal is not received by interior circuits.
Note 3:
Input shut-off means that the first input gate nearest the pin is in operation-disabled state, and
output Hi-Z means that the pin drive transistor is in drive-disabled state leaving the pin in high-
impedance state.
Note 4:
P27 to P24 do not have input shut off, therefore when this port is placed in output Hi-Z state, either
pull-up or pull-down pin processing should be applied.
Pin
Sleep mode
Stop mode
Reset
SPL=0
SPL=1
P07 to P00
P17 to P10
P23 to P20
P33 to P30
P43 to P40
P57 to P50
P66 to P60
Retain immediately
prior status
Note 2
Retain immediately
prior status
Input cut off /
Output Hi-Z
Note3
Input disabled /
Output Hi-Z
P27 to P24
Retain immediately
prior status
Retain immediately
prior status
Input status /
Output Hi-Z
Note 4
Input disabled /
Output Hi-Z
P47 to P44
Input status Note 1