HD6412350 Hitachi, HD6412350 Datasheet - Page 399

• Manufacturer Part Number: HD6412350
• Description: (HD6412350 / HD6432351) 16-BIT MICROCONTROLLER
• Manufacturer: Hitachi

Port D pin functions in modes 3 and 7 are shown in figure 9-21.
9.11.4
Port D 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 3 and 7, and can be specified as on or off on an
individual bit basis.
When a PDDDR bit is cleared to 0 in mode 3 or 7, setting the corresponding PDPCR 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 9-20 summarizes the MOS input pull-up states.
Table 9-20 MOS Input Pull-Up States (Port D)
Modes
1, 2, 4 to 6
3, 7
Legend:
OFF
ON/OFF : On when PDDDR = 0 and PDPCR = 1; otherwise off.
MOS Input Pull-Up Function [H8S/2351 Only]
: MOS input pull-up is always off.
Figure 9-21 Port D Pin Functions (Modes 3 and 7)
Power-On
Reset
OFF
Port D
Hardware
Standby Mode
PD
PD
PD
PD
PD
PD
PD
PD
7
6
5
4
3
2
1
0
Manual
Reset
OFF
ON/OFF
(I/O)
(I/O)
(I/O)
(I/O)
(I/O)
(I/O)
(I/O)
(I/O)
Software
Standby Mode
In Other
Operations
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