SH7065 Datasheet, PDF (508/941 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family/SH7000 Series

Section 11 Motor Management Timer (MMT)
11.7 Port Output Enable (POE)
11.7.1 Overview
The port output enable (POE) circuit enables the MMT’s 6-phase output pins (POUA, POUB,
POVA, POVB, POWA, and POWB) to be placed in the high-impedance state by varying the input
at pins POE0 to POE3. An interrupt can also be requested at the same time.
Separately from this function, the MMT’s 6-phase output pins go to the high-impedance state
when the oscillator halts. For details, see section 4, Clock Pulse Generator (CPG) and Power-
Down Modes.
Features
The POE circuit has the following features:
• Falling edge, Pφ/8 × 16 times, Pφ/16 × 16 times, or Pφ/128 × 16 times low-level sampling
settings can be made for each of input pins POE0 to POE3.
• The MMT’s 6-phase output pins can be placed in the high-impedance state on sampling of a
falling edge or low level at pins POE0 to POE3.
• An interrupt request can be initiated by input level sampling.
Rev. 5.00 Sep 11, 2006 page 486 of 916
REJ09B0332-0500