R5F212A8SNFP#U0 Renesas Electronics America, R5F212A8SNFP#U0 Datasheet - Page 366

• Manufacturer Part Number: R5F212A8SNFP#U0
• Description: IC R8C/2A MCU FLASH 64LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/2x/2Ar

Specifications of R5F212A8SNFP#U0

• Core Processor: R8C
• Core Size: 16/32-Bit
• Speed: 20MHz
• Connectivity: I²C, LIN, SIO, SSU, UART/USART
• Peripherals: POR, PWM, Voltage Detect, WDT
• Number Of I /o: 55
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 3K x 8
• Voltage - Supply (vcc/vdd): 2.2 V ~ 5.5 V
• Data Converters: A/D 12x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 64-LQFP
• For Use With: R0K5212D8S001BE - KIT STARTER FOR R8C/2DR0K5212D8S000BE - KIT DEV FOR R8C/2D
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/2A Group, R8C/2B Group
Rev.2.00
REJ09B0324-0200
Figure 14.156 Block Diagram of Real-Time Clock Mode
14.5.1
In real-time clock mode, a 1-second signal is generated from fC4 using a divide-by-2 frequency divider, 4-bit
counter, and 8-bit counter and used to count seconds, minutes, hours, and days of the week. Figure 14.156
shows a Block Diagram of Real-Time Clock Mode and Table 14.52 lists the Real-Time Clock Mode
Specifications. Figures 14.157 to 14.161 and 14.163 to 14.164 show the Registers Associated with Real-Time
Clock Mode. Table 14.53 lists the Interrupt Sources, Figure 14.162 shows the Definition of Time
Representation and Figure 14.165 shows the Operating Example in Real-Time Clock Mode.
H12_H24, PM, INT: Bits in TRECR1 register
BSY: Bit in registers TRESEC, TREMIN, TREHR, and TREWK
BSY
Nov 26, 2007
fC4
bit
TRESEC
register
Real-Time Clock Mode
MNIE
SEIE
Overflow
Page 344 of 580
1/2
TREMIN
register
HRIE
Overflow
4-bit counter
H12_H24
(1/16)
bit
Data bus
TREHR
register
PM
DYIE
bit
Overflow
WKIE
8-bit counter
(1/256)
TREWK
register
000
(1s)
Overflow
Timing
control
INT
bit
Timer RE
interrupt
14. Timers