UPD78F0550MA-FAA-AX Renesas Electronics America, UPD78F0550MA-FAA-AX Datasheet - Page 349

• 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: -

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
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.
automatically stored to the week count register.
Set the week count register as follows, after reset release.
After reset: 01H
After reset: 00H
7
7
0
0
Figure 10-11. Format of Week Count Register (WEEK)
Figure 10-10. Format of Day Count Register (DAY)
6
0
6
0
R/W
R/W
Wednesday
Thursday
Saturday
Tuesday
Monday
Sunday
Friday
Day
CHAPTER 10 REAL-TIME COUNTER
Preliminary User’s Manual U19111EJ2V1UD
DAY20
5
5
0
DAY10
4
4
0
WEEK
00H
01H
02H
03H
04H
05H
06H
DAY8
3
3
0
WEEK4
DAY4
2
2
WEEK2
DAY2
1
1
WEEK1
DAY1
0
0
349