HD6417706 RENESAS [Renesas Technology Corp], HD6417706 Datasheet - Page 14

• Manufacturer Part Number: HD6417706
• Description: Renesas 32-Bit RISC Microcomputer Super RISC engine Family/SH7700 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Item
13.4.2 Setting Time
Figure 13.2 Setting the Time
13.4.3 Reading the Time
Figure 13.3 Reading the
Time
13.4.4 Alarm Function
Figure 13.4 Using the Alarm
Function
14.1 Feature
Rev. 4.00, 03/04, page xiv of xlvi
Page
341
342
343
347
Revision (See Manual for Details)
Figure 13.2 amended
To reset the divider circuit (RTC prescaler
and R64CNT) and set the counter
Figure 13.3 amended
Figure 13.4 amended
Description added
The SCI has the following features.
Selectable from asynchronous or clock synchronous as the serial
communications mode
Clear alarm flag
Yes
Set alarm time
(a)
Clear the carry flag
To read the time
without using interrupts
Disable the carry
Carry flag = 1?
Read counter
interrupt
register
No
Always reset, since the flag may have been
set while the alarm time was being set
(AF bit in RCR1 is cleared).
Set seconds, minutes,
week, month and year
hour, day, day of the
reset divider circuit
Stop clock,
Start clock
Write 0 to CIE in RCR1
Write 0 to CF in RCR1
Note: Set AF to 1 so that alarm
Read RCR1 and check CF
flag is not cleared.
Write 0 to START and 1 to
RESET in the RCR2 register
Order is irrelevant
Write 1 to START in the
RCR2 register