UPD78F0551MA-FAA-AX Renesas Electronics America, UPD78F0551MA-FAA-AX Datasheet - Page 388
UPD78F0551MA-FAA-AX
Manufacturer Part Number
UPD78F0551MA-FAA-AX
Description
MCU 8BIT 16-SSOP
Manufacturer
Renesas Electronics America
Series
78K0/Kx2-Lr
Datasheet
1.UPD78F0551MA-FAA-AX.pdf
(822 pages)
Specifications of UPD78F0551MA-FAA-AX
Core Processor
78K/0
Core Size
8-Bit
Speed
10MHz
Connectivity
I²C, LIN, UART/USART
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
9
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 4x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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78K0/Kx2-L
R01UH0028EJ0400 Rev.4.00
Sep 27, 2010
Address: FF9DH
RTCC0
Symbol
Caution If RCLOE0 and RCLOE1 are changed when RTCE = 1, a glitch may be generated on the 32.768
Remark ×: don’t care
Notes 1. 78K0/KC2-L (44-pin and 48-pin products) only
RCLOE1
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 10-2 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.
2. RCLOE0 and RCLOE2 must not be enabled at the same time.
RCLOE0
AMPM
RTCE
RTCE
Notes 1, 2
CT2
kHz and 1 Hz output signals.
<7>
After reset: 00H
0
1
0
1
0
1
0
1
0
0
0
0
1
1
1
Note 1
Figure 10-3. Format of Real-Time Counter Control Register 0 (RTCC0)
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
RCLOE1
CT0
<5>
0
1
0
1
0
1
×
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
CHAPTER 10 REAL-TIME COUNTER
CT2
2
CT1
1
CT0
0
374
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