UPD78F0552MA-FAA-AX Renesas Electronics America, UPD78F0552MA-FAA-AX Datasheet - Page 394

• Manufacturer Part Number: UPD78F0552MA-FAA-AX
• Description: MCU 8BIT 16-SSOP
• Manufacturer: Renesas Electronics America
• Series: 78K0/Kx2-Lr

Specifications of UPD78F0552MA-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: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 768 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: -

78K0/Kx2-L
R01UH0028EJ0400 Rev.4.00
Sep 27, 2010
(9) Day count register (DAY)
The DAY register is an 8-bit register that takes a value of 1 to 31 (decimal) and indicates the count value of days.
It counts up when the hour counter overflows.
This counter counts as follows.
• 01 to 31 (January, March, May, July, August, October, December)
• 01 to 30 (April, June, September, November)
• 01 to 29 (February, leap year)
• 01 to 28 (February, normal year)
When data is written to this register, it is written to a buffer and then to the counter up to 2 clocks (32.768 kHz) later.
Even if the hour count register overflows while this register is being written, this register ignores the overflow and is
set to the value written. Set a decimal value of 01 to 31 to this register in BCD code. If a value outside the range is
set, the register value returns to the normal value after 1 period.
DAY can be set by an 8-bit memory manipulation instruction.
Reset signal generation clears this register to 01H.
24-Hour Display (AMPM bit = 1)
Time
10
11
12
13
14
15
16
17
18
19
20
21
22
23
0
1
2
3
4
5
6
7
8
9
HOUR Register
Table 10-2. Displayed Time Digits
00H
01H
02H
03H
04H
05H
06H
07H
08H
09H
10H
11H
12H
13H
14H
15H
16H
17H
18H
19H
20H
21H
22H
23H
10 a.m.
11 a.m.
10 p.m.
11 p.m.
0 a.m.
1 a.m.
2 a.m.
3 a.m.
4 a.m.
5 a.m.
6 a.m.
7 a.m.
8 a.m.
9 a.m.
0 p.m.
1 p.m.
2 p.m.
3 p.m.
4 p.m.
5 p.m.
6 p.m.
7 p.m.
8 p.m.
9 p.m.
12-Hour Display (AMPM bit = 0)
Time
CHAPTER 10 REAL-TIME COUNTER
HOUR Register
12H
01H
02H
03H
04H
05H
06H
07H
08H
09H
10H
11H
32H
21H
22H
23H
24H
25H
26H
27H
28H
29H
30H
31H
380