R5F21256SNFP#U0 Renesas Electronics America, R5F21256SNFP#U0 Datasheet - Page 363
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 16.30
Figure 16.31
IIC bus Receive Data Register
IIC bus Shift Register
Port Mode Register
b7 b6 b5 b4
b7 b6 b5 b4
b7 b6 b5 b4
0 0
Feb 29, 2008
b3 b2 b1 b0
b3 b2 b1 b0
b3 b2
0
0
Registers ICDRR and ICDRS
PMR Register
b1
0
b0
0
Store receive data
When the ICDRS register receives 1 byte of data, the receive data is transferred to the ICDRR
register and the next receive operation is enabled.
This register is used to transmit and receive data.
The transmit data is transferred from registers ICRDT to the ICDRS and data is transmitted
from the SDA pin w hen transmitting.
After 1 byte of data received, data is transferred from registers ICDRS to ICDRR w hile
receiving.
Bit Symbol
U1PINSEL
(b3-b0)
(b6-b5)
Symbol
Symbol
Symbol
ICDRR
ICDRS
IICSEL
PMR
Page 344 of 485
—
—
Reserved bits
Port CLK1/TXD1/RXD1 sw itch bit
Reserved bits
SSU / I
2
C bus sw itch bit
Address
Bit Name
Address
00F8h
00BFh
Function
Function
Set to 0.
0 : I/O ports P6_5, P6_6, P6_7
1 : CLK1, TXD1, RXD1
Set to 0.
0 : Selects SSU function
1 : Selects I
16. Clock Synchronous Serial Interface
2
C bus function
After Reset
After Reset
Function
00h
FFh
RW
RW
RW
RW
RW
RO
—
—
—
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