MCP79512-ISLASHMS datasheet(23/58 Pages) MICROCHIP

部件名	MCP79512-I/MS

功能描述	Battery-Backed SPI Real-Time Clock/Calendar

PDF	58 Pages

Scroll/Zoom	100%

制造商	MICROCHIP [Microchip Technology]

网页	http://www.microchip.com

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DS20002300D-page 23

MCP7951X/MCP7952X

FIGURE 5-7:

ALARM BLOCK DIAGRAM

5.4.1

CONFIGURING THE ALARM

In order to configure the alarm modules, the following

steps need to be performed:

Load the timekeeping registers and enable the

oscillator.

Configure the ALMxMSK<2:0> bits to select the

desired alarm mask.

Ensure the ALMxIF flag is cleared.

Based on the selected alarm mask, load the

alarm match value into the appropriate

Enable the alarm module by setting the

ALMxEN bit.

RTCSEC

RTCMIN

RTCHOUR

RTCWKDAY

RTCDATE

RTCMTH

Timekeeping

Registers

Alarm 0

Registers

Alarm 0 Mask

Alarm 1 Mask

Comparator

MFP

Set

ALM0IF

Set

ALM1IF

ALM0MSK<2:0>

ALM1MSK<2:0>

RTCHSEC

ALM0MIN

ALM0HOUR

ALM0WKDAY

ALM0DATE

ALM0MTH

ALM0SEC

Alarm 1

Registers

ALM1SEC

ALM1MIN

ALM1HOUR

ALM1WKDAY

ALM1DATE

ALM1HSEC

MFP

Output Logic

MCP79512-I/MS 数据表(PDF) 23 Page - Microchip Technology

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