UPD70F3451GC-UBT-A Renesas Electronics America, UPD70F3451GC-UBT-A Datasheet - Page 729
UPD70F3451GC-UBT-A
Manufacturer Part Number
UPD70F3451GC-UBT-A
Description
MCU 32BIT 128KB FLASH 80LQFP
Manufacturer
Renesas Electronics America
Series
V850E/Ix3r
Datasheet
1.UPD70F3451GC-UBT-A.pdf
(1191 pages)
Specifications of UPD70F3451GC-UBT-A
Core Processor
RISC
Core Size
32-Bit
Speed
64MHz
Connectivity
CSI, I²C, UART/USART
Peripherals
DMA, LVD, PWM, WDT
Number Of I /o
44
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
3.5 V ~ 5.5 V
Data Converters
A/D 10x12b, 4x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
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Part Number
Manufacturer
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Price
Company:
Part Number:
UPD70F3451GC-UBT-A
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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(6) UARTAn receive data register (UAnRX)
(7) UARTAn transmit data register (UAnTX)
The UAnRX register is an 8-bit buffer register that stores parallel data converted by the UARTAn receive shift
register.
The data stored in the UARTAn receive shift register is transferred to the UAnRX register upon end of reception
of 1 byte of data. A reception end interrupt request signal (INTUAnR) is generated at this timing.
During LSB-first reception when the data length has been specified as 7 bits, the receive data is transferred to
bits 6 to 0 of the UAnRX register and the MSB always becomes 0. During MSB-first reception, the receive data
is transferred to bits 7 to 1 of the UAnRX register and the LSB always becomes 0.
When an overrun error occurs (UAnSTR.UAnOVE bit = 1), the receive data at this time is not transferred to the
UAnRX register and is discarded.
This register is read-only in 8-bit units.
In addition to reset, the UAnRX register can be set to FFH by clearing the UAnCTL0.UAnPWR bit to 0.
The UAnTX register is an 8-bit register used to set transmit data.
Transmission starts when transmit data is written to the UAnTX register in the transmission enabled status
(UAnCTL0.UAnTXE bit = 1). Upon end of the transfer of the data of the UAnTX register to the UARTAn
transmit shift register, the transmission enable interrupt request signal (INTUAnT) is generated.
This register can be read or written in 8-bit units.
Reset sets this register to FFH.
(n = 0 to 2)
(n = 0 to 2)
UAnRX
UAnTX
After reset: FFH
After reset: FFH
CHAPTER 14 ASYNCHRONOUS SERIAL INTERFACE A (UARTA)
7
7
R
R/W
6
6
Address: UA0RX FFFFFA06H, UA1RX FFFFFA16H,
Address: UA0TX FFFFFA07H, UA1TX FFFFFA17H,
User’s Manual U18279EJ3V0UD
5
5
UA2RX FFFFFA26H
UA2TX FFFFFA27H
4
4
3
3
2
2
1
1
0
0
727
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