Hardware manual

Rev. 3.0, 09/98, page 94 of 361
Table 6.10 indicates the states of the input pull-up transistors in each operating mode.
Table 6.10 States of Input Pull-Up Transistors (Port 3)
Mode Reset Hardware Standby Software Standby Other Operating Modes
1 Off Off Off Off
2 Off Off Off Off
3 Off Off On/off On/off
Notes: Off: The input pull-up transistor is always off.
On/off: The input pull-up transistor is on if P3PCR = “1” and P3DDR = “0,” but off
otherwise.