R5F21257SNFP#U0 Renesas Electronics America, R5F21257SNFP#U0 Datasheet - Page 212
![IC R8C/25 MCU FLASH 52LQFP](/photos/12/37/123739/r5f21257snfp_u0_sml.jpg)
R5F21257SNFP#U0
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
-
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R8C/24 Group, R8C/25 Group
Rev.3.00
REJ09B0244-0300
Figure 14.43
Table 14.24
i = 0 or 1, j = either A, B, C, or D
BFCi, BFDi: Bits in TRDMR register
TRDGRAi
TRDGRBi
TRDGRCi
TRDGRDi
TRDGRCi
TRDGRDi
Timer RD General Registers Ai, Bi, Ci, and Di (i = 0 or 1)
(b15)
Register
b7
NOTE:
1.
The following registers are disabled in the input capture function: TRDOER1, TRDOER2, TRDOCR,
TRDPOCR0, and TRDPOCR1.
Set the pulse width of the input capture signal applied to the TRDIOji pin to 3 cycles or more of the timer RD
operation clock (refer to Table 14.11 Timer RD Operation Clocks) for no digital filter (the DFj bit in the
TRDDFi register set to 0).
Access registers TRDGRAi to TRDGRDi in 16-bit units. Do not access them in 8-bit units.
Feb 29, 2008
−
BFCi = 0
BFDi = 0
BFCi = 1
BFDi = 1
Registers TRDGRAi, TRDGRBi, TRDGRCi, and TRDGRDi in Input Capture Function
TRDGRji Register Functions in Input Capture Function
Setting
(b8)
b0
b7
Refer to Table 14.24 TRDGRji Register Functions in Input Capture Function .
Page 193 of 485
General register
The value in the TRDi register can be read at input
capture.
General register
The value in the TRDi register can be read at input
capture.
Buffer register
The value in the TRDi register can be read at input
capture. (Refer to 14.3.2 Buffer Operation.)
b0
TRDGRA0
TRDGRA1
TRDGRB0
TRDGRC0
TRDGRD0
TRDGRB1
TRDGRC1
TRDGRD1
Symbol
Register Function
Function
(1)
014Bh-014Ah
015Bh-015Ah
014Dh-014Ch
015Dh-015Ch
0149h-0148h
014Fh-014Eh
0159h-0158h
015Fh-015Eh
Address
TRDIOAi
TRDIOBi
TRDIOCi
TRDIODi
TRDIOAi
TRDIOBi
Input-Capture Input Pin
After Reset
FFFFh
FFFFh
FFFFh
FFFFh
FFFFh
FFFFh
FFFFh
FFFFh
14. Timers
RW
RW
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