R5F21256SNFP#U0 Renesas Electronics America, R5F21256SNFP#U0 Datasheet - Page 196
R5F21256SNFP#U0
Manufacturer Part Number
R5F21256SNFP#U0
Description
IC R8C MCU FLASH 32K 52LQFP
Manufacturer
Renesas Electronics America
Series
R8C/2x/25r
Datasheets
1.R5F211A2SPU0.pdf
(300 pages)
2.R5F21246SDFPU0.pdf
(61 pages)
3.R5F21246SDFPU0.pdf
(527 pages)
Specifications of R5F21256SNFP#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
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
2K 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
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
R5F21256SNFP#U0R5F21256SNFP#ES
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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R8C/24 Group, R8C/25 Group
Rev.3.00
REJ09B0244-0300
Figure 14.28
14.3.2
Table 14.22
i = 0 or 1
Input capture function
Output compare function
PWM mode
Reset synchronous PWM
mode
Complementary PWM
mode
PWM3 mode
Function and Mode
The TRDGRCi (i = 0 or 1) register can be used as the buffer register of the TRDGRAi register, and the
TRDGRDi register can be used as the buffer register of the TRDGRBi register by means of bits BFCi and BFDi
in the TRDMR register.
Buffer operation depends on the mode. Table 14.22 lists the Buffer Operation in Each Mode.
Figure 14.28 shows the Buffer Operation in Input Capture Function, and Figure 14.29 shows the Buffer
Operation in Output Compare Function.
• TRDGRAi buffer register: TRDGRCi register
• TRDGRBi buffer register: TRDGRDi register
Feb 29, 2008
Buffer Operation
i = 0 or 1
The above applies under the following conditions:
• The BFCi bit in the TRDMR register is set to 1 (the TRDGRCi register is used as the buffer register of
• Bits IOA2 to IOA0 in the TRDIORAi register are set to 100b (input capture at the falling edge).
the TRDGRAi register).
Buffer Operation in Each Mode
Buffer Operation in Input Capture Function
TRDGRCi register
TRDGRAi register
TRDIOAi input
TRDi register
TRDIOAi input
(input capture signal)
Page 177 of 485
TRDGRCi register
(buffer)
Input capture signal input
Compare match with TRDi register
and TRDGRAi (TRDGRBi) register
Compare match withTRD0 register
and TRDGRA0 register
• Compare match with TRD0 register
• TRD1 register underflow
Compare match with TRD0 register
and TRDGRA0 register
and TRDGRA0 register
(buffer)
Transfer Timing
n-1
m
TRDGRAi
register
n
Transfer
Transfer
Transfer content in TRDGRAi
(TRDGRBi) register to buffer register
Transfer content in buffer register to
TRDGRAi (TRDGRBi) register
Transfer content in buffer register to
TRDGRAi (TRDGRBi) register
Transfer content in buffer register to
registers TRDGRB0, TRDGRA1, and
TRDGRB1
Transfer content in buffer register to
registers TRDGRA0, TRDGRB0,
TRDGRA1, and TRDGRB1
m
n
Transfer Register
n+1
TRDi
14. Timers
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