10.13.6 Port E Mos Input Pull-Up States - Hitachi H8S/2378, H8S/2378R Series Hardware Manual

16 bit single-chip microcomputer
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10.13.6 Port E MOS Input Pull-Up States

Port E has a built-in MOS input pull-up function that can be controlled by software. This MOS
input pull-up function can be used in 8-bit bus mode. MOS input pull-up can be specified as on or
off on a bit-by-bit basis. In 8-bit bus mode, when a PEDDR bit is cleared to 0, setting the
corresponding PEPCR bit to 1 turns on the MOS input pull-up for that pin.
Table 10.6 summarizes the MOS input pull-up states.
Table 10.6 MOS Input Pull-Up States (Port E)
Mode*
1, 2,
8-bit bus
4 to 7
16-bit bus
Legend:
Off:
MOS input pull-up is always off.
On/Off: On when PEDDR = 0 and PEPCR = 1; otherwise off.
Rev. 1.0, 09/01, page 474 of 904
Hardware
Reset
Standby Mode
Off
Off
Software
In Other
Standby Mode
Operations
On/Off
On/Off
Off
Off

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