Overview; Block Diagram; Mode Transitions - Renesas F-ZTAT H8 Series Hardware Manual

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Table of Contents

Section 18 ROM

Flash memory can be programmed/erased in PROM mode, using a PROM programmer, as

well as in on-board programming mode.

Overview

Flash memory control register 1

Flash memory control register 2

Erase block register 1

Erase block register 2

RAM control register

When the mode pins and the FWE pin are set in the reset state and a reset-start is executed, the

microcomputer enters an operating mode as shown in figure 18.2. In user mode, flash memory can

be read but not programmed or erased.

Rev. 3.00 Mar 21, 2006 page 556 of 814

REJ09B0302-0300

Internal address bus

Internal data bus (16 bits)

Bus interface/controller

Flash memory

Figure 18.1 Block Diagram of Flash Memory

(512 kbytes)