R5F21334CNFP#U0 Renesas Electronics America, R5F21334CNFP#U0 Datasheet - Page 603

• Manufacturer Part Number: R5F21334CNFP#U0
• Description: MCU 1KB FLASH 16K ROM 32-LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/3x/33Cr

Specifications of R5F21334CNFP#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: 27
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 1.5K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 12x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 32-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/33C Group
REJ09B0570-0100 Rev.1.00 Dec. 14, 2009
Page 573 of 589
Figure 33.2
TREWK, and bits H12_H24, PM,
Setting of TREIC (IR bit ← 0,
Setting of registers TRECSR,
TRESEC, TREMIN, TREHR,
and INT in TRECR1 register
select interrupt priority level)
(disable timer RE interrupt)
TRERST in TRECR1 = 1
TRERST in TRECR1 = 0
TSTART in TRECR1 = 0
TSTART in TRECR1 = 1
TCSTF in TRECR1 = 0?
TCSTF in TRECR1 = 1?
TOENA in TRECR1 = 0
TOENA in TRECR1 = 1
Setting of TRECR2
Setting Example in Real-Time Clock Mode
TREIC ← 00h
Disable timer RE clock output
(When it is necessary)
Select interrupt source
Enable timer RE clock output
(When it is necessary)
Stop timer RE operation
Timer RE register
and control circuit reset
Select clock output
Select clock source
Seconds, minutes, hours, days of week, operating mode
Set a.m./p.m., interrupt timing
Start timer RE operation
33. Usage Notes