R5F2L3AAANFP#U1 Renesas Electronics America, R5F2L3AAANFP#U1 Datasheet - Page 227

• Manufacturer Part Number: R5F2L3AAANFP#U1
• Description: MCU FLASH 96+4KB 100LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/Lx/3AAr

Specifications of R5F2L3AAANFP#U1

• Core Processor: R8C
• Core Size: 16/32-Bit
• Speed: 20MHz
• Connectivity: I²C, LIN, SIO, SSU, UART/USART
• Peripherals: LCD, POR, PWM, Voltage Detect, WDT
• Number Of I /o: 88
• Program Memory Size: 96KB (96K x 8)
• Program Memory Type: FLASH
• Ram Size: 10K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 20x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 100-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/L35A Group, R8C/L36A Group, R8C/L38A Group, R8C/L3AA Group,
R8C/L35B Group, R8C/L36B Group, R8C/L38B Group, R8C/L3AB Group
REJ09B0441-0100 Rev.1.00
Page 190 of 802
Figure 14.1
Bits WDTRCS0 and WDTRCS1
Oscillation starts
when CSPRO = 1
CPU clock
Internal reset signal
Write to WDTR register
Note:
1. A value set by bits WDTUFS0 and WDTUFS1 is set in the watchdog timer (value when shipping: 3FFFh).
(Low active)
Watchdog Timer Block Diagram
Low-speed on-chip oscillator
for watchdog timer
Prescaler
1/128
1/16
1/2
Oct 30, 2009
Refresh period
CM07 = 0,
WDC7 = 1
control circuit
CM07 = 1
CM07 = 0,
WDC7 = 0
CSPRO = 0
CSPRO: Bit in CSPR register
WDTC7: Bit in WDTC register
PM12: Bit in PM1 register
CM07: Bit in CM0 register
WDTUFS0, WDTUFS1, WDTRCS0, WDTRCS1: Bits in OFS2 register
CSPRO = 1
Watchdog timer
(Note 1)
14. Watchdog Timer
PM12 = 1
PM12 = 0
Watchdog
timer reset
Watchdog timer
interrupt request