PCF2129 datasheet(33/86 Pages) PHILIPS

33 / 86 page

PCF2129

All information provided in this document is subject to legal disclaimers.

Product data sheet

Rev. 7 — 19 December 2014

33 of 86

NXP Semiconductors

PCF2129

Accurate RTC with integrated quartz crystal for industrial applications

8.9.1 Register Second_alarm

8.9.2 Register Minute_alarm

Table 38.

Second_alarm - second alarm register (address 0Ah) bit allocation

Bits labeled as X are undefined at power-on and unchanged by subsequent resets.

Bit

Symbol

AE_S

SECOND_ALARM (0 to 59)

Reset

value

XXX

Table 39.

Second_alarm - second alarm register (address 0Ah) bit description

Bit

Symbol

Value

Place value Description

AE_S

second alarm is enabled

second alarm is disabled

6 to 4

SECOND_ALARM

0 to 5

ten’s place

second alarm information coded in BCD format

3to0

0 to9

unit place

Table 40.

Minute_alarm - minute alarm register (address 0Bh) bit allocation

Bits labeled as X are undefined at power-on and unchanged by subsequent resets.

Bit

Symbol

AE_M

MINUTE_ALARM (0 to 59)

Reset

value

XXX

Table 41.

Minute_alarm - minute alarm register (address 0Bh) bit description

Bits labeled as X are undefined at power-on and unchanged by subsequent resets.

Bit

Symbol

Value

Place value Description

AE_M

minute alarm is enabled

minute alarm is disabled

6 to 4

MINUTE_ALARM

0 to 5

ten’s place

minute alarm information coded in BCD format

3to0

0 to9

unit place

PCF2129 Fiches technique(PDF) 33 Page - NXP Semiconductors

PCF2129 Fiches technique(HTML) 33 Page - NXP Semiconductors

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86

Fiches technique Télécharger

Lien URL