UPD78F0550MA-FAA-AX Renesas Electronics America, UPD78F0550MA-FAA-AX Datasheet - Page 348

• Manufacturer Part Number: UPD78F0550MA-FAA-AX
• Description: MCU 8BIT 16-SSOP
• Manufacturer: Renesas Electronics America
• Series: 78K0/Kx2-Lr

Specifications of UPD78F0550MA-FAA-AX

• Package / Case: *
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Speed: 10MHz
• Number Of I /o: 12
• Core Processor: 78K/0
• Program Memory Type: FLASH
• Ram Size: 384 x 8
• Program Memory Size: 4KB (4K x 8)
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Peripherals: LVD, POR, PWM, WDT
• Connectivity: I²C, LIN, UART/USART
• Core Size: 8-Bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

348
(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.
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. Set a decimal value of 01 to 31 to this register in BCD code. If a value outside this 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.
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)
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
CHAPTER 10 REAL-TIME COUNTER
Table 10-2. Displayed Time Digits
Preliminary User’s Manual U19111EJ2V1UD
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
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