UPD78F1233GB-GAH-AX Renesas Electronics America, UPD78F1233GB-GAH-AX Datasheet - Page 546

• Manufacturer Part Number: UPD78F1233GB-GAH-AX
• Description: MCU 16BIT 78K0R/LX3 64-LQFP
• Manufacturer: Renesas Electronics America
• Series: 78K0R/Ix3r

Specifications of UPD78F1233GB-GAH-AX

• Core Processor: 78K/0R
• Core Size: 16-Bit
• Speed: 40MHz
• Connectivity: 3-Wire SIO, I²C, LIN, UART/USART
• Peripherals: DMA, LVD, POR, PWM, WDT
• Number Of I /o: 50
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 1.5K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

544
Address: FFF9DH
RTCC0
Symbol
Caution
Remark
• To change the value of AMPM, set RWAIT (bit 0 of RTCC1) to 1, and re-set the hour count register (HOUR).
• Table 9-2 shows the displayed time digits that are displayed.
When changing the values of CT2 to CT0 while the counter operates (RTCE = 1), rewrite the values of CT2 to CT0
after disabling interrupt servicing INTRTC by using the interrupt mask flag register. Furthermore, after rewriting the
values of CT2 to CT0, enable interrupt servicing after clearing the RIFG and RTCIF flags.
AMPM
RTCE
RTCE
CT2
<7>
0
1
0
1
0
0
0
0
1
1
1
After reset: 00H
Figure 9-3. Format of Real-Time Counter Control Register 0 (RTCC0)
Be sure to clear bits 4 to 6 to 0.
×: don’t care
Stops counter operation.
Starts counter operation.
12-hour system (a.m. and p.m. are displayed.)
24-hour system
CT1
0
0
1
1
0
0
1
6
0
R/W
CHAPTER 9 REAL-TIME COUNTER
CT0
0
1
0
1
0
1
×
5
0
User’s Manual U19678EJ1V1UD
Does not use constant-period interrupt function.
Once per 0.5 s (synchronized with second count up)
Once per 1 s (same time as second count up)
Once per 1 m (second 00 of every minute)
Once per 1 hour (minute 00 and second 00 of every hour)
Once per 1 day (hour 00, minute 00, and second 00 of every day)
Once per 1 month (Day 1, hour 00 a.m., minute 00, and second 00 of
every month)
Real-time counter operation control
Selection of 12-/24-hour system
4
0
Constant-period interrupt (INTRTC) selection
AMPM
3
CT2
2
CT1
1
CT0
0