R8CSLASH2G datasheet(206/344 Pages) RENESAS

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R8C/2G Group

17. Timers

Rev.1.00

Apr 04, 2008

Page 186 of 318

REJ09B0387-0100

Figure 17.29

TREHR Register in Real-Time Clock Mode

Figure 17.30

TREWK Register in Real-Time Clock Mode

Timer RE Hour Data Register

Symbol

Address

After Reset

TREHR

011Ah

X0XXXXXXb

Bit Symbol

Bit Name

Function

Setting

Range

Timer RE busy flag

This bit is set to 1 w hile registers TRESEC,

TREMIN, TREHR, and TREWK are updated.

2nd digit of hour count bits

Count 0 to 1 w hen the H12_H24 bit is

set to 0 (12-hour mode).

Count 0 to 2 w hen the H12_H24 bit is

set to 1 (24-hour mode).

0 to 2

(BCD

code)

Nothing is assigned. If necessary, set to 0.

When read, the content is 0.

—

b3 b2

HR03

b1 b0

b7 b6 b5 b4

HR00

1st digit of hour count bits

HR01

Count 0 to 9 every hour. When the

digit moves up, 1 is added to the 2nd

digit of hour.

0 to 9

(BCD

code)

HR02

HR10

HR11

BSY

—

(b6)

Timer RE Day of Week Data Register

Symbol

Address

After Reset

TREWK

011Bh

X0000XXXb

Bit Symbol

Bit Name

Function

WK2

—

BSY

Nothing is assigned. If necessary, set to 0.

When read, the content is 0.

Timer RE busy flag

This bit is set to 1 w hile registers TRESEC,

TREMIN, TREHR, and TREWK are updated.

WK1

Day of w eek count bits

b2 b1 b0

0 0 0 : Sunday

0 0 1 : Monday

0 1 0 : Tuesday

0 1 1 : Wednesday

1 0 0 : Thursday

1 0 1 : Friday

1 1 0 : Saturday

1 1 1 : Do not set.

b7 b6 b5 b4 b3 b2

—

(b6-b3)

b1 b0

WK0

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