UPD70F3451GC-UBT-A Renesas Electronics America, UPD70F3451GC-UBT-A Datasheet - Page 813

• Manufacturer Part Number: UPD70F3451GC-UBT-A
• Description: MCU 32BIT 128KB FLASH 80LQFP
• Manufacturer: Renesas Electronics America
• Series: V850E/Ix3r

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: -

(1) CSIBn receive data register (CBnRX)
(2) CSIBn transmit data register (CBnTX)
The CBnRX register is a 16-bit buffer register that holds receive data.
This register is read-only, in 16-bit units.
The receive operation is started by reading the CBnRX register in the reception mode.
If the transfer data length is 8 bits, the lower 8 bits of this register are read-only in 8-bit units as the CBnRXL
register.
Reset sets this register to 0000H.
In addition to reset, the CBnRX register can be initialized by clearing (to 0) the CBnCTL0.CBnPWR bit.
The CBnTX register is a 16-bit buffer register used to write the CSIBn transfer data.
This register can be read or written in 16-bit units.
The transmit operation is started by writing data to the CBnTX register in the transmission mode.
If the transfer data length is 8 bits, the lower 8 bits of this register can be read or written in 8-bit units as the
CBnTXL register.
Reset sets this register to 0000H.
Remark
(n = 0 to 2)
(n = 0 to 2)
CBnRX
CBnTX
The communication start conditions are shown below.
Transmission mode (CBnTXE bit = 1, CBnRXE bit = 0):
Transmission/reception mode (CBnTXE bit = 1, CBnRXE bit = 1): Write to CBnTX register
Reception mode (CBnTXE bit = 0, CBnRXE bit = 1):
After reset: 0000H
After reset: 0000H
CHAPTER 16 CLOCKED SERIAL INTERFACE B (CSIB)
R
R/W
Address: CB0RX FFFFFD04H, CB0RXL FFFFFD04H,
User’s Manual U18279EJ3V0UD
Address: CB0TX FFFFFD06H, CB0TXL FFFFFD06H,
CB1RX FFFFFD14H, CB1RXL FFFFFD14H,
CB2RX FFFFFD24H, CB2RXL FFFFFD24H
CB1TX FFFFFD16H, CB1TXL FFFFFD16H,
CB2TX FFFFFD26H, CB2TXL FFFFFD26H
Write to CBnTX register
Read from CBnRX register
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