R5F21334CNFP#U0 Renesas Electronics America, R5F21334CNFP#U0 Datasheet - Page 605
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
- Current page: 605 of 622
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R8C/33C Group
REJ09B0570-0100 Rev.1.00 Dec. 14, 2009
Page 575 of 589
33.10 Notes on Serial Interface (UARTi (i = 0 or 1))
•
•
When reading data from the UiRB (i = 0 or 1) register either in clock synchronous serial I/O mode or in clock
asynchronous serial I/O mode, always read data in 16-bit units.
When the high-order byte of the UiRB register is read, bits PER and FER in the UiRB register and the RI bit in
the UiC1 register are set to 0.
To check receive errors, read the UiRB register and then use the read data.
When writing data to the UiTB register in clock asynchronous serial I/O mode with 9-bit transfer data length,
write data to the high-order byte first and then the low-order byte, in 8-bit units.
Program example to read the receive buffer register:
Program example to write to the transmit buffer register:
MOV.W
MOV.B
MOV.B
00A6H,R0
#XXH,00A3H
#XXH,00A2H
; Read the U0RB register
; Write to the high-order byte of the U0TB register
; Write to the low-order byte of the U0TB register
33. Usage Notes
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