UPD70F3714GC-8BS-A Renesas Electronics America, UPD70F3714GC-8BS-A Datasheet - Page 504

• Manufacturer Part Number: UPD70F3714GC-8BS-A
• Description: MCU 32BIT V850ES/LX2 64-LQFP
• Manufacturer: Renesas Electronics America
• Series: V850ES/Ix2r

Specifications of UPD70F3714GC-8BS-A

• Core Processor: RISC
• Core Size: 32-Bit
• Speed: 20MHz
• Connectivity: CSI, UART/USART
• Peripherals: LVD, PWM, WDT
• Number Of I /o: 39
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 6K x 8
• Voltage - Supply (vcc/vdd): 3.5 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

502
(1) CSIB0 receive data register (CB0RX)
(2) CSIB0 transmit data register (CB0TX)
The CB0RX 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 CB0RX register in the reception enabled status.
If the transfer data length is 8 bits, the lower 8 bits of this register are read-only in 8-bit units as the CB0RXL
register.
Reset sets this register to 0000H.
In addition to reset, the CB0RX register can be initialized by clearing (to 0) the CB0CTL0.CB0PWR bit.
The CB0TX register is a 16-bit buffer register used to write the CSIB0 transfer data.
This register can be read or written in 16-bit units.
The transmit operation is started by writing data to the CB0TX register in the transmission enabled status.
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
CB0TXL register.
Reset sets this register to 0000H.
Remark
CB0RX
CB0TX
The communication start conditions are shown below.
Transmission mode (CB0TXE bit = 1, CB0RXE bit = 0):
Transmission/reception mode (CB0TXE bit = 1, CB0RXE bit = 1): Write to CB0TX register
Reception mode (CB0TXE bit = 0, CB0RXE bit = 1):
After reset: 0000H
After reset: 0000H
CHAPTER 13 3-WIRE VARIABLE-LENGTH SERIAL I/O (CSIB)
R
R/W
Address: CB0RX FFFFFD04H, CB0RXL FFFFFD04H
User’s Manual U17716EJ2V0UD
Address: CB0TX FFFFFD06H, CB0TXL FFFFFD06H
Write to CB0TX register
Read from CB0RX register