HD64F2149YV datasheet(728/1075 Pages) RENESAS

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Section 22 ROM

Rev. 3.00 Jan 18, 2006 page 700 of 1044

REJ09B0280-0300

Bit 7—Flash Memory Error (FLER): Indicates that an error has occurred during an operation on

flash memory (programming or erasing). When FLER is set to 1, flash memory goes to the error-

protection state.

Bit 7

FLER

Description

Flash memory is operating normally

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

[Clearing condition]

Reset or hardware standby mode

(Initial value)

An error has occurred during flash memory programming/erasing

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

[Setting condition]

See section 22.8.3, Error Protection

Bits 6 to 2—Reserved: Should always be written with 0.

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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