Rainbow-electronics AT73C246 Manual do Utilizador descarregar pdf (Página 53)

11050A–PMAAC–07-Apr-10

AT73C246

11.10.13 RTC Valid Entry Register

Name: RTC_VER

Access: Read-only

Address: 0x2C

• NVTIM: Non-valid Time

0 = No invalid data has been detected in RTC_TIMR (Time Register).

1 = RTC_TIMR has contained invalid data since it was last programmed.

• NVCAL: Non-valid Calendar

0 = No invalid data has been detected in RTC_CALR (Calendar Register).

1 = RTC_CALR has contained invalid data since it was last programmed.

• NVTIMALR: Non-valid Time Alarm

0 = No invalid data has been detected in RTC_TIMALR (Time Alarm Register).

1 = RTC_TIMALR has contained invalid data since it was last programmed.

• NVCALALR: Non-valid Calendar Alarm

0 = No invalid data has been detected in RTC_CALALR (Calendar Alarm Register).

1 = RTC_CALALR has contained invalid data since it was last programmed.

31 30 29 28 27 26 25 24

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23 22 21 20 19 18 17 16

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15 14 13 12 11 10 9 8

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76543210

––––NVCALALRNVTIMALRNVCALNVTIM

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Rainbow-electronics AT73C246 Manual do Utilizador Página 53