SH7261 datasheet(681/1348 Pages) RENESAS

681 / 1348 page

Section 15 Realtime Clock (RTC)

Rev. 2.00 Sep. 07, 2007 Page 649 of 1312

REJ09B0320-0200

15.3.8

Year Counter (RYRCNT)

RYRCNT is used for setting/counting in the BCD-coded year section. The count operation is

performed by a carry for each year of the month counter.

The assignable range is from 0000 through 9999 (practically in BCD), otherwise operation errors

occur. Carry out write processing after stopping the count operation through the setting of the

START bit in RCR2.

RYRCNT is not initialized by a power-on reset or manual reset, in deep standby mode or software

standby mode.

R/W

Bit:

Initial value:

R/W:

1000 years

100 years

10 years

1 year

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Bit

Bit Name

Initial

Value

R/W

Description

15 to 12 1000 years Undefined

R/W

Counting Thousand's Position of Years

11 to 8

100 years

Undefined

R/W

Counting Hundred's Position of Years

7 to 4

10 years

Undefined

R/W

Counting Ten's Position of Years

3 to 0

1 year

Undefined

R/W

Counting One's Position of Years

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