HD6412320 RENESAS [Renesas Technology Corp], HD6412320 Datasheet - Page 439

• Manufacturer Part Number: HD6412320
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family H8S-2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

9.9.4
Port B 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 6 and 7, and can be specified as on or off on an
individual bit basis.
When a PBDDR bit is cleared to 0 in mode 6 or 7, setting the corresponding PBPCR 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 reset, and in hardware standby mode.
The prior state is retained in software standby mode.
Table 9.17 summarizes the MOS input pull-up states.
Table 9.17 MOS Input Pull-Up States (Port B)
Modes
4, 5
6, 7
Legend:
Off:
On/off: On when PBDDR = 0 and PBPCR = 1; otherwise off.
MOS input pull-up is always off.
MOS Input Pull-Up Function
Reset
Off
Hardware
Standby Mode
Off
Rev.6.00 Sep. 27, 2007 Page 409 of 1268
Software
Standby Mode
Off
On/off
Section 9 I/O Ports
REJ09B0220-0600
In Other
Operations
Off
On/off