UPD70F3201YGC-YEU-A Renesas Electronics America, UPD70F3201YGC-YEU-A Datasheet - Page 261

• Manufacturer Part Number: UPD70F3201YGC-YEU-A
• Description: MCU 32BIT I2C 100TQFP
• Manufacturer: Renesas Electronics America
• Series: V850ES/Sx2r

Specifications of UPD70F3201YGC-YEU-A

• Core Processor: RISC
• Core Size: 32-Bit
• Speed: 20MHz
• Connectivity: CSI, EBI/EMI, I²C, UART/USART
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 68
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 2.2 V ~ 2.7 V
• Data Converters: A/D 12x10b; D/A 2x8b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

9.1
Prescaler 3
The real-time counter has the following functions.
• Week, day, hour, minute, and second counters that can count up to 4,095 weeks
• Week, day, hour, minute, and second counters can be read while they are operating/stopped
• Generates overflow interrupt request signal (INTROV) from week counter.
• Generates interval interrupt request signal (INTRTC) at intervals of 0.015625, 0.03125, 0.0625, 0.125, 0.25, 0.5,
The configuration of the real-time counter function is shown below.
Remark
or 1 second, 1 minute, 1 hour, or 1 day.
Function
f
XT
f
BRG
f
f
BRG
XT
: Subclock frequency
= 32.768 kHz
: Prescaler 3 clock frequency (Refer to 6.5 Prescaler 3.)
Count clock
Count enable/
disable circuit
Sub-count
(15 bits)
(SUBC)
register
6
CHAPTER 9 REAL-TIME COUNTER FUNCTION
0.015625/0.03125/0.0625/0.125/0.25/0.5 second
Figure 9-1. Block Diagram of Real-Time Counter
setting register
Second count
1 second
(SECB)
count register
Second
(6 bits)
(SEC)
User’s Manual U15905EJ2V1UD
setting register
Minute count
1 minute
(MIINB)
count register
(6 bits)
Minute
(MIN)
Internal bus
setting register
Hour count
1 hour
(HOURB)
count register
(HOUR)
(5 bits)
Hour
setting register
Day count
1 day
(DAYB)
Day count
register
(3 bits)
(DAY)
setting register
Week count
(WEEKB)
Week count
(WEEK)
(12 bits)
register
INTRTC
INTROV
259