UPD78F0555MA-FAA-AX Renesas Electronics America, UPD78F0555MA-FAA-AX Datasheet - Page 395

• Manufacturer Part Number: UPD78F0555MA-FAA-AX
• Description: MCU 8BIT 16-SSOP
• Manufacturer: Renesas Electronics America
• Series: 78K0/Kx2-Lr

Specifications of UPD78F0555MA-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: 4KB (4K x 8)
• Program Memory Type: FLASH
• Ram Size: 384 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
Address: FFB6H
Address: FFB5H
(10) Week count register (WEEK)
Symbol
Symbol
WEEK
DAY
Caution Values corresponding to the month count register and day count register are not automatically
The WEEK register is an 8-bit register that takes a value of 0 to 6 (decimal) and indicates the count value of
weekdays.
It counts up in synchronization with the day counter.
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 00 to 06 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.
WEEK can be set by an 8-bit memory manipulation instruction.
Reset signal generation clears this register to 00H.
stored to the week count register.
Set the week count register as follows, after reset release.
After reset: 01H
After reset: 00H
7
0
7
0
6
0
Figure 10-11. Format of Week Count Register (WEEK)
6
0
Figure 10-10. Format of Day Count Register (DAY)
R/W
R/W
Wednesday
Thursday
Saturday
Tuesday
Monday
Sunday
Friday
Day
DAY20
5
5
0
DAY10
4
4
0
WEEK
03H
00H
01H
02H
04H
05H
06H
DAY8
3
3
0
CHAPTER 10 REAL-TIME COUNTER
WEEK4
DAY4
2
2
WEEK2
DAY2
1
1
WEEK1
DAY1
0
0
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