PCF2127ATSLASH1 datasheet(40/80 Pages) NXP

40 / 80 page

PCF2127A_2

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Product data sheet

Rev. 02 — 7 May 2010

40 of 80

NXP Semiconductors

PCF2127A

Integrated RTC, TCXO and quartz crystal

The following tables show what instruction must be sent to clear the appropriate flag.

[1]

The bits labeled as - have to be rewritten with the previous values.

[1]

The bits labeled as - have to be rewritten with the previous values.

[1]

The bits labeled as - have to be rewritten with the previous values.

[1]

The bits labeled as - have to be rewritten with the previous values.

Table 40.

Example values in register Control_2

Bit

Control_2

101

11000

Table 41.

Example to clear only CDTF (bit 3) in register Control_2

Bit

Control_2

-[1]

Table 42.

Example to clear only AF (bit 4) in register Control_2

Bit

Control_2

0[1]

Table 43.

Example to clear only MSF (bit 7) in register Control_2

Bit

Control_2

0[1]

Table 44.

Example to clear both CDTF and MSF in register Control_2

Bit

Control_2

0[1]

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