UPD78F0413GA-GAM-AX NEC, UPD78F0413GA-GAM-AX Datasheet - Page 268

• Manufacturer Part Number: UPD78F0413GA-GAM-AX
• Description: 8BIT UC, 32K FLASH, 1KB RAM, LCD
• Manufacturer: NEC

Specifications of UPD78F0413GA-GAM-AX

• Controller Family/series: UPD78F
• No. Of I/o's: 30
• Ram Memory Size: 1024Byte
• Cpu Speed: 10MHz
• No. Of Timers: 8
• No. Of Pwm: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 32KB
• Oscillator Type: External, Internal

268
Address: FF8BH
(4) Real-time counter control register 2 (RTCC2)
RTCC2
Symbol
The RTCC2 register is an 8-bit register that is used to control the interval interrupt function and the RTCDIV
pin.
RTCC2 can be set by a 1-bit or 8-bit memory manipulation instruction.
Reset signal generation clears this register to 00H.
Note RCLOE0 and RCLOE2 must not be enabled at the same time.
Caution When the output from RTCDIV pin is stopped, the output continues after a maximum of two
Change ICT2, ICT1, and ICT0 when RINTE = 0.
RCLOE2
RCKDIV
RINTE
RINTE
clocks of f
stopped immediately after entering the high level, a pulse of at least one clock width of f
may be generated.
<7>
After reset: 00H
0
1
1
1
1
1
1
1
0
1
0
1
Figure 9-5. Format of Real-Time Counter Control Register 2 (RTCC2)
Note
Output of RTCDIV pin is disabled.
Output of RTCDIV pin is enabled.
RTCDIV pin outputs 512 Hz.
RTCDIV pin outputs 16.384 kHz.
RCLOE2
RTC
ICT2
<6>
0
0
0
0
1
1
1
and enters the low level. While 512 Hz is output, and when the output is
R/W
CHAPTER 9 REAL-TIME COUNTER
RCKDIV
ICT1
<5>
0
0
1
1
0
0
1
User’s Manual U18698EJ1V0UD
Selection of RTCDIV pin output frequency
ICT0
0
1
0
1
0
1
4
0
RTCDIV pin output control
Interval interrupt is not generated.
2
2
2
2
2
2
2
6
7
8
9
10
11
12
/f
/f
/f
/f
/f
/f
/f
RTC
RTC
RTC
RTC
RTC
RTC
RTC
3
0
(1.953125 ms)
(3.90625 ms)
(7.8125 ms)
(15.625 ms)
(31.25 ms)
(62.5 ms)
(125 ms)
Interval interrupt (INTRTCI) selection
ICT2
2
ICT1
1
ICT0
0
XT