R5F21256SNFP#U0 Renesas Electronics America, R5F21256SNFP#U0 Datasheet - Page 486
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 21.6
•
Feb 29, 2008
Select with bits CMD1 to CMD0 the timing of data transfer from the buffer register to the general register.
However, transfer takes place with the following timing in spite of the value of bits CMD1 to CMD0 in the
following cases:
Value in buffer register ≥ value in TRDGRA0 register:
Transfer take place at underflow of the TRD1 register.
After this, when the buffer register is set to 0001h or above and a smaller value than the value of the
TRDGRA0 register, and the TRD1 register underflows for the first time after setting, the value is
transferred to the general register. After that, the value is transferred with the timing selected by bits CMD1
to CMD0.
TRDGRD0 register
TRDGRB0 register
TRDIOD0 output
TRDIOB0 output
Complementary PWM Mode
Operation when Value in Buffer Register ≥ Value in TRDGRA0 Register in
The above applies under the following conditions:
• Bits CMD1 to CMD0 in the TRDFCR register are set to 11b (data in the buffer register is transferred at compare match
• Both the OSL0 and OLS1 bits in the TRDFCR register are set to 1 (active ‘H” for normal-phase and counter-phase).
between registers TRD0 and TRDGRA0 in complementary PWM mode).
Transfer with timing set by
bits CMD1 to CMD0
0000h
m+1
n3
n2
n1
Page 467 of 485
Transfer
n2
n1
n2
Transfer at
underflow of TRD1
register because of
n3 > m
n3
Transfer
n3
Transfer at
underflow of TRD1
register because
of first setting to
n2 < m
Transfer
n2
m: Value set in TRDGRA0 register
n2
n1
Transfer with timing set by
bits CMD1 to CMD0
Transfer
n1
Count value in TRD0
register
Count value in TRD1
register
21. Usage Notes
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