R5F21257SNFP#U0 Renesas Electronics America, R5F21257SNFP#U0 Datasheet - Page 298

• 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 14.123 Block Diagram of Output Compare Mode
14.4.2
fC4
f32
f4
f8
TRERST, TOENA: Bits in TRECR1 register
COMIE: Bit in TRECR2 register
RCS0 to RCS2, RCS5 to RCS6: Bits in TRECSR register
In output compare mode, the internal count source divided by 2 is counted using the 4-bit or 8-bit counter and
compare value match is detected with the 8-bit counter. Figure 14.123 shows a Block Diagram of Output
Compare Mode, and Table 14.39 lists the Output Compare Mode Specifications. Figures 14.124 to 14.128 show
the Registers Associated with Output Compare Mode, and Figure 14.129 shows the Operating Example in
Output Compare Mode.
= 01b
= 10b
Feb 29, 2008
= 11b
RCS1 to RCS0
= 00b
Output Compare Mode
Page 279 of 485
1/2
counter
4-bit
TRESEC
RCS2 = 1
RCS2 = 0
Data bus
Comparison
TREMIN
counter
circuit
8-bit
Match
signal
T Q
R
COMIE bit
RCS6 to RCS5
= 01b
= 10b
f2
= 00b
= 11b
Reset
TRERST bit
TOENA bit
Timer RE interrupt
14. Timers
TREO pin