SH7261 datasheet(676/1348 Pages) RENESAS

676 / 1348 page

Section 15 Realtime Clock (RTC)

Rev. 2.00 Sep. 07, 2007 Page 644 of 1312

REJ09B0320-0200

15.3.3

Minute Counter (RMINCNT)

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

performed by a carry for each minute of the second counter.

The assignable range is from 00 through 59 (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.

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

standby modes.

R/W

Bit:

Initial value:

R/W:

—

———————

10 minutes

1 minute

Bit

Bit Name

Initial

Value

R/W

Description



Reserved

This bit is always read as 0.The write value should

always be 0.

6 to 4

10 minutes

Undefined

R/W

Counting Ten's Position of Minutes

Counts on 0 to 5 for 60-minutes counting.

3 to 0

1 minute

Undefined

R/W

Counting One's Position of Minutes

Counts on 0 to 9 once per second. When a carry is

generated, 1 is added to the ten's position.

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