HM8563 datasheet(9/22 Pages) HMSEMI

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Table 14 Weekdays register bits description

06H

Symbol

Description

b7..3

not implemented

b2..0

These bits represent the current weekday value 0 to 6, whose

meaning is customized by users. However, we recommend a way

to specify the weekday number, see Table 15.

These bits may be re-assigned by the user.

Table 15 Suggested Weekday assignments

Day

Bit 2

Bit 1

Bit 0

Sunday

Monday

Tuesday

Wednesday

Thursday

Friday

101

Saturday

Table 16 Months/Century register bits description

07H

Symbol

Description

Century bit. C = 0; indicates the century is 20xx.

C = 1; indicates the century is 19xx. ‘xx’ indicates the value held in the

Years register; see Table 18.

This bit is toggled when the Years register overflows from 99 to 00.

These bits may be re-assigned by the user

b6..5

not implemented

b4..0

These bits represents the current month value coded in BCD format;

value = 01 to 12; see Table 17.

Table 17 Month assignments

Month

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

January

February

March

April

100

May

101

June

110

July

111

August

000

September

October

000

HM8563

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