R5F21257SNFP#U0 Renesas Electronics America, R5F21257SNFP#U0 Datasheet - Page 275

• 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 14.102 TRDCR0 Register in PWM3 Mode
Timer RD Control Register 0
b7 b6 b5 b4
NOTES:
0 0 1
1.
2.
Bits CKEG1 to CKEG0 are enabled w hen bits TCK2 to TCK0 are set to 101b (TRDCLK input) and the STCLK bit in the
TRDFCR register is set to 1 (external clock input enabled).
The TRDCR1 register is not used in PWM3 mode.
Feb 29, 2008
b3 b2
b1 b0
Bit Symbol
TRDCR0
Symbol
CKEG0
CKEG1
CCLR0
CCLR1
CCLR2
TCK0
TCK1
TCK2
Page 256 of 485
(2)
Count source select bits
External clock edge select bits
TRD0 counter clear select bits
Address
Bit Name
0140h
(1)
b2 b1b0
0 0 0 : f1
0 0 1 : f2
0 1 0 : f4
0 1 1 : f8
1 0 0 : f32
1 0 1 : Do not set.
1 1 0 : fOCO40M
1 1 1 : Do not set.
These bits are disabled in PWM3 mode.
Set to 001b (the TRD0 register cleared at
compare match w ith TRDGRA0 register) in
PWM3 mode.
After Reset
Function
00h
14. Timers
RW
RW
RW
RW
RW
RW
RW
RW
RW