H8S2245 datasheet(306/818 Pages) RENESAS

Part #	H8S2245

Description	Renesas 16-Bit Single-Chip Microcomputer H8S Family / H8S/2200 Series

PDF	818 Pages

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Manufacturer	RENESAS [Renesas Technology Corp]

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Section 8 I/O Ports

Rev.3.00 Mar. 26, 2007 Page 264 of 772

REJ09B0355-0300

8.10.4

MOS Input Pull-Up Function

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.

Note:

Modes 2, 3, 6, and 7 cannot be used in the H8S/2240.

Table 8.18 summarizes the MOS input pull-up states.

Table 8.18

MOS Input Pull-Up States (Port D)

Modes

Power-On

Reset

Hardware

Standby Mode

Manual

Reset

Software

Standby Mode

In Other

Operations

1, 2, 4 to 6

OFF

3, 7

ON/OFF

Legend:

OFF:

MOS input pull-up is always off.

ON/OFF: On when PDDDR = 0 and PDPCR = 1; otherwise off.

H8S2245 Datasheet(PDF) 306 Page - Renesas Technology Corp