HD6432345 Datasheet, PDF (281/907 Pages) Hitachi Semiconductor – H8S/2345 F-ZTAT Hardware Manual

Port E pin functions in modes 3 and 7 are shown in figure 8.22.
Port E
PE₇ (I/O)
PE₆ (I/O)
PE₅ (I/O)
PE₄ (I/O)
PE₃ (I/O)
PE₂ (I/O)
PE₁ (I/O)
PE₀ (I/O)
Figure 8.22 Port E Pin Functions (Modes 3 and 7)*
8.10.4 MOS Input Pull-Up Function
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 modes 1, 2, 4, 5, and 6* when 8-bit bus mode is selected, or
in mode 3 or 7*, and can be specified as on or off on an individual bit basis.
When a PEDDR bit is cleared to 0 in mode 1, 2, 4, 5, or 6* when 8-bit bus mode is selected, or in
mode 3 or 7*, setting the corresponding PEPCR bit to 1 turns on the MOS input pull-up for that
pin.
The MOS input pull-up function is in the off state after a power-on reset, and in hardware standby
mode. The prior state is retained after a manual reset, and in software standby mode.
Table 8.18 summarizes the MOS input pull-up states.
Table 8.18 MOS Input Pull-Up States (Port E)
Modes
Power-On Hardware
Manual Software
Reset
Standby Mode Reset Standby Mode
3, 7*
OFF
ON/OFF
1, 2, 4 to 6* 8-bit bus
16-bit bus
OFF
Legend:
OFF : MOS input pull-up is always off.
ON/OFF : On when PEDDR = 0 and PEPCR = 1; otherwise off.
Note: * Modes 1 to 3 are not available on the F-ZTAT version.
Modes 2, 3, 6, and 7 are not available on the ROMless version.
In Other
Operations
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