UPD78F1146AGB-GAH-AX Renesas Electronics America, UPD78F1146AGB-GAH-AX Datasheet - Page 267

• Manufacturer Part Number: UPD78F1146AGB-GAH-AX
• Description: MCU 16BIT 78K0R/KX3 64-LQFP
• Manufacturer: Renesas Electronics America
• Series: 78K0R/Kx3r

Specifications of UPD78F1146AGB-GAH-AX

• Core Processor: 78K/0R
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: 3-Wire SIO, I²C, LIN, UART/USART
• Peripherals: DMA, LVD, POR, PWM, WDT
• Number Of I /o: 50
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 12K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

<R>
Address: FFF9DH
RTCC0
Symbol
Note RCLOE0 and RCLOE2 must not be enabled at the same time.
Caution If RCLOE0 and RCLOE1 are changed when RTCE = 1, glitches may occur in the 32.768 kHz
Remark ×: don’t care
Rewrite the AMPM value after setting RWAIT (bit 0 of RTCC1) to 1. If the AMPM value is changed, the values of
the hour count register (HOUR) change according to the specified time system.
Table 7-2 shows the displayed time digits.
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.
RCLOE0
RCLOE1
AMPM
RTCE
RTCE
CT2
and 1 Hz output signals.
<7>
0
1
0
1
0
1
0
1
0
0
0
0
1
1
1
After reset: 00H
Figure 7-3. Format of Real-Time Counter Control Register 0 (RTCC0)
Note
Stops counter operation.
Starts counter operation.
Disables output of RTC1HZ pin (1 Hz).
Enables output of RTC1HZ pin (1 Hz).
Disables output of RTCCL pin (32.768 kHz).
Enables output of RTCCL pin (32.768 kHz).
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 7 REAL-TIME COUNTER
RCLOE1
CT0
<5>
0
1
0
1
0
1
×
User’s Manual U17854EJ9V0UD
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)
RCLOE0
Real-time counter operation control
<4>
Selection of 12-/24-hour system
RTC1HZ pin output control
RTCCL pin output control
Constant-period interrupt (INTRTC) selection
AMPM
3
CT2
2
CT1
1
CT0
0
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