R5F21334CNFP#U0 Renesas Electronics America, R5F21334CNFP#U0 Datasheet - Page 425
R5F21334CNFP#U0
Manufacturer Part Number
R5F21334CNFP#U0
Description
MCU 1KB FLASH 16K ROM 32-LQFP
Manufacturer
Renesas Electronics America
Series
R8C/3x/33Cr
Datasheet
1.R5F21331CNFPU0.pdf
(622 pages)
Specifications of R5F21334CNFP#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
27
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Ram Size
1.5K 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
32-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
R5F21334CNFP#U0R5F21334CNFP#V2
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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R8C/33C Group
REJ09B0570-0100 Rev.1.00 Dec. 14, 2009
Page 395 of 589
24.5
In 4-wire bus communication mode, a 4-wire bus consisting of a clock line, a data input line, a data output line, and
a chip select line is used for communication. This mode includes bidirectional mode in which the data input line
and data output line function as a single pin.
The data input line and output line change according to the settings of the MSS bit in the SSCRH register and the
BIDE bit in the SSMR2 register. For details, refer to 24.3.2.1 Association between Data I/O Pins and SS Shift
Register. In this mode, clock polarity, phase, and data settings are performed by bits CPOS and CPHS in the
SSMR register. For details, refer to 24.3.1.1 Association between Transfer Clock Polarity, Phase, and Data.
When this MCU is set as the master device, the chip select line controls output. When synchronous serial
communication unit is set as a slave device, the chip select line controls input. When it is set as the master device,
the chip select line controls output of the SCS pin or controls output of a general port according to the setting of the
CSS1 bit in the SSMR2 register. When the MCU is set as a slave device, the chip select line sets the SCS pin as an
input pin by setting bits CSS1 and CSS0 in the SSMR2 register to 01b.
In 4-wire bus communication mode, the MLS bit in the SSMR register is set to 0 and communication is performed
MSB-first.
Operation in 4-Wire Bus Communication Mode
24. Synchronous Serial Communication Unit (SSU)
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