HD6432138SW datasheet(644/1061 Pages) RENESAS

644 / 1061 page

Section 21 ROM (Mask ROM Version, H8S/2138 F-ZTAT, H8S/2134 F-ZTAT, and H8S/2132 F-ZTAT)

Rev. 4.00 Jun 06, 2006 page 590 of 1004

REJ09B0301-0400

Bit 7

FLER

Description

Flash memory is operating normally

(Initial value)

Flash memory program/erase protection (error protection) is disabled

[Clearing condition]

Reset or hardware standby mode

An error has occurred during flash memory programming/erasing

Flash memory program/erase protection (error protection) is enabled

[Setting condition]

See section 21.8.3, Error Protection

Bits 6 to 2—Reserved: Always write 0 when writing to these bits.

Bit 1—Erase Setup (ESU): Prepares for a transition to erase mode. Set this bit to 1 before setting

the E bit to 1 in FLMCR1. Do not set the SWE, PSU, EV, PV, E, or P bit at the same time.

Bit 1

ESU

Description

Erase setup cleared

(Initial value)

Erase setup

[Setting condition]

When SWE = 1

Bit 0—Program Setup (PSU): Prepares for a transition to program mode. Set this bit to 1 before

setting the P bit to 1 in FLMCR1. Do not set the SWE, ESU, EV, PV, E, or P bit at the same time.

Bit 0

PSU

Description

Program setup cleared

(Initial value)

Program setup

[Setting condition]

When SWE = 1

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