Setup Example - Panasonic MN101L Series User Manual

12.3.2

Setup Example

Periodic Interrupt Setup Example
The following is an example to generate a periodic interrupt with a cycle of a minute with the RTC function. Set
the initial time to "01:01:00 (Thursday), April 01, 2010" in 24-hour display mode.
The setup procedure and the description of each step are shown below.
Step Setting
1 RTC stops
2 Periodic interrupt disabled
3 Display mode setting
Clock data setting
4
5 Periodic interrupt enabled
6 All maskable interrupts disabled
Interrupt level setting
7
8 Periodic Interrupt enabled
9 Maskable interrupts enabled
RTC starts
10
* For PSW, refer to [Chapter 2 CPU].
For PERI0ICR and PERI0EN, refer to [Chapter 3 Interrupts].
Symbol
RTCCTR Set the CLKEN bit to "0".
RTCCIRQ Set the CIRQMIEN bit to "0".
RTCCTR Set the HDMD bit to "0".
- Set the clock data to "01:01:00 (Thursday), April 01,
2010" using the following registers.
RTCYD Set it to "0x10".
RTCMOD Set it to "0x04".
RTCDD Set it to "0x01".
RTCWD Set it to "0x04".
RTCHD Set it to "0x01".
RTCMID Set it to "0x01".
RTCSD Set it to "0x00".
RTCCIRQ Set the CIRQMIEN bit to "1".
PSW * Set the MIE bit to "0".
PERI0ICR * Set the PERI0LV1-0 bits to "00".
Clear the corresponding interrupt request bit of
PERI0DT register, if it may have already been set.
Refer to [3.1.5 Set up procedure for Interrupt control
register for peripheral function group]
PERI0EN * Set the PERI0EN4 bit to "1".
PSW * Set the MIE bit to "1".
RTCCTR Set the CLKEN bit to "1".
The RTC starts.
Real Time Clock (RTC)
Description
RTC Operation
Chapter 12
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