H8S-2633 Datasheet, PDF (564/1487 Pages) Renesas Technology Corp – 16-Bit Single-Chip Microcomputer

Section 10B I/O Ports (H8S/2695)
10B.9.4 MOS Input Pull-Up Function
Port C 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.
In modes 6 and 7, when PCPCR is set to 1 in the input state by setting of PCDDR, the MOS input
pull-up is set to ON.
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 by a manual reset or in software standby mode.
Table 10B.15 summarizes the MOS input pull-up states.
Table 10B.15 MOS Input Pull-Up States (Port C)
Pin States
Power-On Hardware
Manual
Reset
Standby Mode Reset
Address output
OFF
OFF
OFF
Other than above
ON/OFF
Legend:
OFF: MOS input pull-up is always off.
ON/OFF: On when PCDDR = 0 and PCPCR = 1; otherwise off.
Software
Standby Mode
OFF
ON/OFF
In Other
Operations
OFF
ON/OFF
Rev. 5.00 Mar 28, 2005 page 502 of 1422
REJ09B0234-0500