R5F21257SNFP#U0 Renesas Electronics America, R5F21257SNFP#U0 Datasheet - Page 114

• Manufacturer Part Number: R5F21257SNFP#U0
• Description: IC R8C/25 MCU FLASH 52LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/2x/25r

Specifications of R5F21257SNFP#U0

• Core Processor: R8C
• Core Size: 16/32-Bit
• Speed: 20MHz
• Connectivity: I²C, LIN, SIO, SSU, UART/USART
• Peripherals: POR, Voltage Detect, WDT
• Number Of I /o: 41
• Program Memory Size: 48KB (48K x 8)
• Program Memory Type: FLASH
• Ram Size: 2.5K x 8
• Voltage - Supply (vcc/vdd): 2.2 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 52-LQFP
• For Use With: R0K521256S000BE - KIT EVAL STARTER FOR R8C/25
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/24 Group, R8C/25 Group
Rev.3.00
REJ09B0244-0300
Figure 10.15
State Transitions in Power Control Mode
CM04, CM05, CM07: Bits in CM0 register
CM13, CM14: Bits in CM1 register
OCD2: Bit in OCD register
FRA00, FRA01: Bits in FRA0 register
Figure 10.15 shows the State Transitions in Power Control Mode.
Interrupt
Standard operating mode
Feb 29, 2008
High-speed clock mode
CPU operation stops
Wait mode
OCD2 = 0
CM05 = 0
CM07 = 0
CM13 = 1
State Transitions in Power Control Mode
FRA01 = 0
OCD2 = 0
CM05 = 0
CM13 = 1
CM14 = 0
OCD2 = 1
WAIT instruction
Page 95 of 485
FRA00 = 1
FRA01 = 1
OCD2 = 1
OCD2 = 0
CM05 = 0
CM13 = 1
CM04 = 1
CM07 = 1
High-speed on-chip oscillator mode
Low-speed on-chip oscillator mode
Interrupt
FRA01 = 0
CM14 = 0
All oscillators stop
Stop mode
FRA01 = 0
FRA00 = 1
FRA01 = 1
CM07 = 0
CM14 = 0
OCD2 = 1
CM07 = 0
OCD2 = 1
Reset
FRA00 = 1
FRA01 = 1
CM10 = 1
CM05 = 0
CM07 = 0
CM13 = 1
OCD2 = 0
CM04 = 1
CM07 = 1
FRA01 = 0
OCD2 = 1
CM07 = 0
CM14 = 0
CM04 = 1
CM07 = 1
FRA00 = 1
FRA01 = 1
10. Clock Generation Circuit
CM07 = 0
OCD2 = 1
Low-speed clock mode
CM04 = 1
CM07 = 1