HD64F3028F25 Datasheet, PDF (294/925 Pages) Renesas Technology Corp – Hardware Manual Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series

Table 8.7 summarizes the states of the input pull-ups 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
6 and 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. 2.00, 09/03, page 262 of 890