R5F21346CNFP#U0 Renesas Electronics America, R5F21346CNFP#U0 Datasheet - Page 570
R5F21346CNFP#U0
Manufacturer Part Number
R5F21346CNFP#U0
Description
MCU 1KB FLASH 32K ROM 48-LQFP
Manufacturer
Renesas Electronics America
Series
R8C/3x/34Cr
Datasheet
1.R5F21346CNFPU0.pdf
(759 pages)
Specifications of R5F21346CNFP#U0
Core Processor
R8C
Core Size
16/32-Bit
Speed
20MHz
Connectivity
I²C, LIN, SIO, SSU, UART/USART
Peripherals
POR, PWM, Voltage Detect, WDT
Number Of I /o
43
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
2.5K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 12x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 85°C
Package / Case
48-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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R8C/34C Group
REJ09B0586-0100 Rev.1.00 Jan 13, 2010
Page 537 of 723
26.2.4
26.2.5
b7 to b0
b7 to b0
After Reset
After Reset
Bit
Bit
Address 0194h
Address 0196h
Symbol
Symbol
Bit
Bit
This register stores transmit data.
When the ICDRS register is detected as empty, the stored transmit data item is transferred to the
ICDRS register and data transmission starts.
When the next unit of transmit data is written to the ICDRT register while data is transmitted to the
ICDRS register, continuous transmission is enabled.
When the MLS bit in the ICMR register is set to 1 (data transfer with LSB-first), the MSB-LSB
inverted data is read after the data is written to the ICDRT register.
This register stores 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.
IIC bus Transmit Data Register (ICDRT)
IIC bus Receive Data Register (ICDRR)
b7
b7
—
—
1
1
b6
b6
—
—
1
1
b5
—
b5
—
1
1
b4
b4
—
—
1
1
Function
Function
b3
b3
—
—
1
1
b2
b2
—
—
1
1
b1
b1
—
—
1
1
b0
b0
—
—
1
1
26. I
2
C bus Interface
R/W
R/W
R/W
R
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