SWCS049A datasheet(61/144 Pages) TI

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Seconds

Hours

Seconds

Compensation event

SWCS046-016

TPS65911

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SWCS049S – JUNE 2010 – REVISED AUGUST 2018

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Detailed Description

Table 6-4. RTC Registers Example (continued)

Value

HOURS_REG

0x90

DAYS_REG

0x05

MONTHS_REG

0x09

YEARS_REG

0x08

The user can round to the nearest minute, by setting the ROUND_30S register bit. TC values are set to

the nearest minute value at the next second. The ROUND_30S bit is automatically cleared when the

rounding time is performed.

Example:

•

If current time is 10H59M45S, a round operation changes time to 11H00M00S.

•

If current time is 10H59M29S, a round operation changes time to 10H59M00S.

6.9.2

General Registers

Software can access the RTC_STATUS_REG and RTC_CTRL_REG registers at any time (except for the

RTC_CTRL_REG[5] bit, which must be changed only when the RTC is stopped).

6.9.3

Compensation Registers

The RTC_COMP_MSB_REG and RTC_COMP_LSB_REG registers must respect the available access

period. These registers must be updated before each compensation process. For example, software can

load the compensation value into these registers after each hour event, during an available access period.

Figure 6-6. RTC Compensation Scheduling

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