HD64F7047 datasheet(346/764 Pages) RENESAS

Part #	HD64F7047

Description	Renesas 32-Bit RISC Microcomputer SuperHTMRISC engine Family/SH7000 Series

PDF	764 Pages

Scroll/Zoom	100%

Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

Logo

346 / 764 page

Rev. 2.00, 09/04, page 306 of 720

10.9

Port Output Enable (POE)

The port output enable (POE) can be used to establish a high-impedance state for high-current

pins, by changing the

POE0–POE3 pin input, depending on the output status of the high-current

pins (PE9/TIOC3B, PE11/TIOC3D, PE12/TIOC4A, PE13/TIOC4B/

MRES, PE14/TIOC4C,

PE15/TIOC4D/

IRQOUT). It can also simultaneously generate interrupt requests.

The high-current pins also become high-impedance regardless of whether these pin functions are

selected in cases such as when the oscillator stops or in standby mode.

10.9.1

Features

• Each of the POE0–POE3 input pins can be set for falling edge, Pφ/8 × 16, Pφ/16 × 16, or

φ/128 × 16 low-level sampling.

• High-current pins can be set to high-impedance state by POE0–POE3 pin falling-edge or low-

level sampling.

• High-current pins can be set to high-impedance state when the high-current pin output levels

are compared and simultaneous low-level output continues for one cycle or more.

• Interrupts can be generated by input-level sampling or output-level comparison results.

HD64F7047 Datasheet(PDF) 346 Page - Renesas Technology Corp