R5F2L3AAANFP#U1 Renesas Electronics America, R5F2L3AAANFP#U1 Datasheet - Page 158

• 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 121 of 802
Figure 8.5
Figure 8.6
Procedure for Switching Low-Speed On-Chip Oscillator to XIN Clock
Watchdog Timer
Example of Determining Interrupt Sources for Oscillation Stop Detection or
To oscillation stop detection
NO
(oscillation stop detection
interrupt disabled)
Note:
OCD1 to OCD3: Bits in OCD register
Set OCD1 bit to 0
(XIN clock stops)
Determination of
interrupt sources
interrupt routine
1. This disables multiple oscillation stop detection interrupts.
OCD3 = 1?
Oct 30, 2009
Set bits OCD1 to OCD0 to 00b
whether OCD3 bit is set to 0
(XIN clock oscillates)
Check several times
(XIN clock selected)
Switch to XIN clock
YES
Set OCD2 bit to 0
(1)
End
YES
NO
interrupt enabled) and OCD2 = 1
selected as the system clock)?
(oscillation stop detection
(on-chip oscillator clock
OCD3 to OCD0: Bits in OCD register
OCD1 = 1
YES
NO
To watchdog timer
interrupt routine
8. Clock Generation Circuit