PCA2125TS/1-T NXP Semiconductors, PCA2125TS/1-T Datasheet - Page 7

• Manufacturer Part Number: PCA2125TS/1-T
• Description: Real Time Clock AUTO RL TME CLCK/CAL
• Manufacturer: NXP Semiconductors

Specifications of PCA2125TS/1-T

• Bus Type: Serial (3-Wire, SPI)
• Package Type: TSSOP
• Operating Supply Voltage (max): 5.5V
• Operating Temperature (min): -40C
• Mounting: Surface Mount
• Date Format: DW:DM:M:Y
• Time Format: HH:MM:SS
• Mounting Style: SMD/SMT
• Package / Case: TSSOP-14
• Lead Free Status / RoHS Status: Compliant
• Other names: PCA2125TS/1,118

NXP Semiconductors
PCA2125_1
Product data sheet
8.3 Control registers
Table 6.
Table 7.
Bit
7
6
5
4
3
2
1 to 0
Bit
7
6
5
4
3
2
1
0
Symbol
EXT_TEST
-
STOP
-
POR_OVRD 0
12_24
-
Symbol
MI
SI
MSF
TI_TP
AF
TF
AIE
TIE
Control_1 register (address 00h) bit description
Control_2 register (address 01h) bit description
Value Description
0
1
0
0
1
0
1
0
1
0
Value Description
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Rev. 01 — 28 July 2008
normal mode
external clock test mode
unused
RTC source clock runs
RTC divider chain flip-flops are asynchronously set
to logic 0; the RTC clock is stopped (CLKOUT at
32.768 kHz, 16.384 kHz or 8.192 kHz is still
available)
unused
power-on reset override facility is disabled; set to
logic 0 for normal operation
power-on reset override is enabled
24 hour mode is selected
12 hour mode is selected
unused
minute interrupt is disabled
minute interrupt is enabled
second interrupt is disabled
second interrupt is enabled
no minute or second interrupt generated
flag set when minute or second interrupt generated;
flag must be cleared to clear interrupt
interrupt pin follows timer flags
interrupt pin generates a pulse
no alarm interrupt generated
flag set when alarm triggered; flag must be cleared
to clear interrupt
no countdown timer interrupt generated
flag set when countdown timer interrupt generated;
flag must be cleared to clear interrupt
no interrupt generated from the alarm flag
interrupt generated when alarm flag set
no interrupt generated from the countdown timer
flag
interrupt generated when countdown timer flag set
SPI Real-time clock/calendar
PCA2125
© NXP B.V. 2008. All rights reserved.
Reference
Section 8.9
Section 8.10
-
Section 8.2.1
Table 11
-
Reference
Section 8.6.1
Section 8.6
Section 8.7.2
Section 8.5.1
-
-
Section 8.7.3
Section 8.7
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