HD6433044 Datasheet, PDF (271/867 Pages) Hitachi Semiconductor – Hitachi Single-Chip Microcomputer

Table 9-7 summarizes the states of the input pull-ups MOS in the 8-bit and 16-bit bus modes.
Table 9-7 Input Pull-Up MOS Transistor States (Port 4)
Mode
Reset
Hardware
Standby Mode
Software
Standby Mode
Other Modes
1 to 6 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 MOS transistor is always off.
On/off: The input pull-up MOS transistor is on if P4PCR = 1 and P4DDR = 0. Otherwise, it is off.
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