HD64F2638F20J Datasheet, PDF (331/1512 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2600 Series

H8S/2639, H8S/2638, H8S/2636,
H8S/2630, H8S/2635 Group
Section 9 I/O Ports
9.8.4 MOS Input Pull-Up Function
Port C has an on-chip 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 reset, and in hardware standby mode.
The prior state is retained by a manual reset or in software standby mode.
Table 9-15 summarizes the MOS input pull-up states.
Table 9-15 MOS Input Pull-Up States (Port C)
Pin States
Reset
Hardware
Software
Standby Mode Standby Mode
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.
In Other
Operations
OFF
ON/OFF
REJ09B0103-0800 Rev. 8.00
May 28, 2010
Page 281 of 1458