CC2430-RTR1-F64Z datasheet(144/234 Pages) TI

部品番号	CC2430-RTR1-F64Z

部品情報	A True System-on-Chip solution for 2.4 GHz IEEE 802.15.4 / ZigBee-TM

PDF	234 Pages

Scroll/Zoom	100%

メーカー	TI [Texas Instruments]

ホームページ	http://www.ti.com

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144 / 234 page

CC2430

CC2430 PRELIMINARY Data Sheet (rev. 1.03) SWRS036A

Page 144 of 232

13.11 Power On Reset and Brown Out

Detector

The

CC2430 includes a Power On Reset

(POR) and Brown Out Detector (BOD) in

order to protect the memory contents

during supply voltage variations and

provide correct initialization during power-

on.

When power is initially applied to the

CC2430 the Power On Reset (POR) and

Brown Out Detector (BOD) will hold the

device in reset state until the supply

voltage reaches above the Power On

Reset and Brown Out voltages as defined

in Table 4 on page 12.

Figure 32 shows the POR/BOD operation

with the 1.8V (typical) regulated supply

voltage together with the active low reset

signals BOD_RESET and POR_RESET

shown in the bottom of the figure.

The cause of the last reset can read from

the register bits SLEEP.RST.

UNREGULATED

1.8V REGULATED

POR RESET ASSERT FALLING VDD

BOD RESET ASSERT

POR RESET DEASSERT RISING VDD

VOLT

POR OUTPUT

BOD RESET

POR RESET

Figure 32 : Power On Reset and Brown Out Detector Operation

CC2430-RTR1-F64Z データシート(PDF) 144 Page - Texas Instruments

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