HD404374FT datasheet(65/161 Pages) RENESAS

Part #	HD404374FT

Description	Low-Voltage AS Microcomputers with On-Chip A/D Converter

PDF	161 Pages

Scroll/Zoom	100%

Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

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65 / 161 page

HD404374/HD404384/HD404389/HD404082/HD404084 Series

Rev.5.00, Sep.11.2003, page 65 of 161

R20/TOC pin mode selection

R20

TOC

Bit

Read/Write

Initial value on reset

Bit name

PMR33

PMR32

PMR33

R22/SI/SO pin mode selection

R22

PMR31

R21/SCK pin mode selection

R21

SCK

PMR30

Port mode register 3 (PMR3: $00B)

* : Don't care

Figure 29 Port Mode Register 3 (PMR3: $00B)

Pull-Up MOS Control

Program-controllable pull-ups MOS are incorporated in all I/O pins.

On/off control of all pull-ups MOS is performed by bit 3 (MIS3) of the miscellaneous register (MIS: $005)

and the port data register (PDR) for each pin, enabling the pull-up MOS to be turned on or off

independently for each pin (table 22, figure 30).

Except for analog input multiplexed pins, the pull-up MOS on/off setting can be made independent of the

setting as an on-chip supporting module pin.

HD404374FT Datasheet(PDF) 65 Page - Renesas Technology Corp