R8CSLASH29 datasheet(236/471 Pages) RENESAS

236 / 471 page

R8C/28 Group, R8C/29 Group

14. Timers

Rev.2.10

Sep 26, 2008

Page 219 of 441

REJ09B0279-0210

Figure 14.64

TREHR Register in Real-Time Clock Mode

Figure 14.65

TREWK Register in Real-Time Clock Mode

Timer RE Hour Data Register

Symbol

Address

After Reset

TREHR

011Ah

00h

Bit Symbol

Bit Name

Function

Setting

Range

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

BSY

—

(b6)

HR10

HR11

—

Timer RE busy flag

Timer RE Day of Week Data Register

Symbol

Address

After Reset

TREWK

011Bh

00h

Bit Symbol

Bit Name

Function

—

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

WK2

b7 b6 b5 b4 b3 b2

—

(b6-b3)

b1 b0

WK0

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