R5F21257SNFP#U0 Renesas Electronics America, R5F21257SNFP#U0 Datasheet - Page 208
![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 14.38
Timer RD I/O Control Register Ai (i = 0 or 1)
b7 b6 b5 b4
NOTES:
1.
2.
3.
4.
1
To select 1 (the TRDGRCi register is used as a buffer register of the TRDGRAi register) for this bit by the BFCi bit in
the TRDMR register, set the IOC2 bit in the TRDIORCi register to the same value as the IOA2 bit in the TRDIORAi
register.
To select 1 (the TRDGRDi register is used as a buffer register of the TRDGRBi register) for this bit by the BFDi bit in
the TRDMR register, set the IOD2 bit in the TRDIORCi register to the same value as the IOB2 bit in the TRDIORAi
register.
The IOA3 bit is enabled in the TRDIORA0 register only. Set to the IOA3 bit in TRDIORA1 to 1.
The IOA3 bit is enabled w hen the IOA2 bit is set to 1 (input capture function).
Feb 29, 2008
b3 b2
1
Registers TRDIORA0 to TRDIORA1 in Input Capture Function
b1 b0
TRDIORA0
TRDIORA1
Bit Symbol
Symbol
IOA0
IOA1
IOA2
IOA3
IOB0
IOB1
IOB2
(b7)
Page 189 of 485
—
TRDGRA control bits
TRDGRA mode select bit
Input capture input sw itch
bit
TRDGRB control bits
TRDGRB mode select bit
Nothing is assigned. If necessary, set to 0.
When read, the content is 1.
(3, 4)
Address
Bit Name
0141h
0151h
(2)
(1)
b1 b0
0 0 : Input capture to the TRDGRAi register
0 1 : Input capture to the TRDGRAi register
1 0 : Input capture to the TRDGRAi register
1 1 : Do not set.
b5 b4
0 0 : Input capture to the TRDGRBi register
0 1 : Input capture to the TRDGRBi register
1 0 : Input capture to the TRDGRBi register
1 1 : Do not set.
Set to 1 (input capture) in the input capture
function.
0 : fOCO128 Signal
1 : TRDIOA0 pin input
Set to 1 (input capture) in the input capture
function.
at the rising edge
at the falling edge
at both edges
at the rising edge
at the falling edge
at both edges
After Reset
10001000b
10001000b
Function
14. Timers
RW
RW
RW
RW
RW
RW
RW
RW
—
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