3069RF-ZTAT Datasheet, PDF (290/1003 Pages) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER

Table 8.7 summarizes the states of the input pull-up transistors in each operating mode.
Table 8.7 Input Pull-Up Transistor States (Port 4)
Mode
Reset
Hardware
Software
Standby Mode Standby Mode Other Modes
1 to 5 8-bit bus mode Off
Off
On/off
On/off
16-bit bus mode
Off
Off
7
On/off
On/off
[Legend]
Off: The input pull-up transistor is always off.
On/off: The input pull-up transistor is on if P4PCR = 1 and P4DDR = 0. Otherwise, it is off.
Rev. 5.0, 09/04, page 268 of 978