Datasheet

Section 19 Power-On Reset and Low-Voltage Detection Circuits (Optional)

Rev. 4.00 Mar. 15, 2006 Page 406 of 556

REJ09B0026-0400

Bit Bit Name

Initial

Value R/W Description

0 LVDUE 0 R/W Voltage-Rise-Interrupt Enable

0: Interrupt on the power-supply voltage rising above the

selected detection level disabled

1: Interrupt on the power-supply voltage rising above the

selected detection level enabled

Note: * Not initialized by LVDR but initialized by a power-on reset or WDT reset.

Table 19.1 LVDCR Settings and Select Functions

LVDCR Settings Select Functions

LVDE

LVDSEL

LVDRE

LVDDE

LVDUE

Power-On

Reset

LVDR

Low-Voltage-

Detection

Falling

Interrupt

Low-Voltage-

Detection

Rising

Interrupt

0 * * * * O   

1 1 1 0 0 O O  

1 0 0 1 0 O  O 

1 0 0 1 1 O  O O

1 0 1 1 1 O O O O

Note: * means invalid.