R5F21257SNFP#U0 Renesas Electronics America, R5F21257SNFP#U0 Datasheet - Page 280

• 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 14.107 Operating Example of PWM3 Mode
Feb 29, 2008
TRDGRA0 register
TRDGRC0 register
TRDSTR register
TRDSTR register
TRDSR0 register
TRDSR0 register
TRDIOA0 output
TRDIOB0 output
TSTART0 bit in
CSEL0 bit in
IMFA bit in
IMFB bit in
Count source
j = either A or B
The above applies under the following conditions:
• Both the TOA0 and TOB0 bits in the TRDOCR register are set to 0 (initial output level “L”, output “H” by compare match with the
• The BFC0 bit in the TRDMR register is set to 1 (the TRDGRC0 register is used as the buffer register of the TRDGRA0 register).
TRDGRj1 register, output “L” at compare match with the TRDGRj0 register).
Value in TRD0 register
FFFFh
0000h
m
n
p
q
1
0
1
0
1
0
1
0
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Initial output “L”
Output “H” at compare
TRDGRA1 register
match with the
Set to 0 by a program
m
Output “L” at compare match
with the TRDGRA0 register
m
Transfer from buffer register to
general register
Set to 0 by a program
Transfer
q+1
p+1
Set to 0 by a program
n+1
p-q
m+1
Set to 0 by a program
m: Value set in TRDGRA0 register
n: Value set in TRDGRA1 register
p: Value set in TRDGRB0 register
q: Value set in TRDGRB1 register
m
Following data
Transfer from buffer register to
m-n
general register
Set to 0 by a program
Count stop
Transfer
14. Timers