Overview Of Functions And Description Of Registers; Overview Of Functions; Digital Offset Function - Epson RX8010SJ Applications Manual

12.Overview of Functions and Description of Registers

Note:
The initialization of the register is necessary about the unused function and Reserved bit

12.1. Overview of Functions

1) Clock functions
This function is used to set and read out month, day, hour, date, minute, second, and year (last two digits) data.
Any (two-digit) year that is a multiple of 4 is treated as a leap year and calculated automatically as such until the
year 2099.
At the time of a communication start, the Clock & Calendar data are fixed (hold the carry operation), and it is
automatically revised at the time of the communication end.
2) Wakeup Timer Interrupt function
The wakeup timer interrupt function generates an interrupt event periodically at any fixed cycle set between
244.14 s and 65535 hours.
When an interrupt event is generated, the /IRQ2 pin goes to low level ("L") and "1" is set to the TF bit to report that
an event has occurred.
3) Long-Timer function
It is able to use wakeup timer interrupt function as Long-Timer that deals with for approx. 15 years.
4) Alarm interrupt function
The alarm interrupt function generates interrupt events for alarm settings such as date, day, hour, and minute
settings. When an interrupt event occurs, the AF bit value is set to "1" and the /IRQ1 pin goes to low level to
indicate that an event has occurred.
5) Time Update Interrupt Function
The time update interrupt function generates interrupt events at one-second or one-minute intervals, according to
the timing of the internal clock. When an interrupt event is generated, the /IRQ1 pin goes to low level ("L") and "1"
is set to the UF bit to report that an event has occurred.
6) Frequency stop detection function (VLF-bit)
This flag bit indicates the retained status of clock operations or internal data. Its value changes from "0" to "1"
when data loss occurs, such as due to a supply voltage drop.
7) Clock output function
A clock with the same frequency (32.768 kHz) as the built-in crystal resonator can be output from the
/IRQ1, /IRQ2 pin.

8) Digital offset function

The clock precision can be set ahead or behind. The minimum resolution is 3.0510
range of +192.310
accuracy, please refer to accuracy after initialized a register by all means.
9) User RAM
RAM register is read/write accessible for any data.
Digital offset function
RX8010SJ
ETM37E-07
-6 -6
from -195.310 . When calculate compensation value from frequency accuracy or clock
Seiko Epson Corporation
12.Overview of Functions and Description of
-6
and it can adjust it in the
Registers
Jump to INDEX
15