UPD70F3740GC-UEU-AX Renesas Electronics America, UPD70F3740GC-UEU-AX Datasheet - Page 503

• Manufacturer Part Number: UPD70F3740GC-UEU-AX
• Description: MCU 32BIT V850ES/JX3 100-LQFP
• Manufacturer: Renesas Electronics America
• Series: V850ES/Jx3r

Specifications of UPD70F3740GC-UEU-AX

• Core Processor: RISC
• Core Size: 32-Bit
• Speed: 32MHz
• Connectivity: CSI, EBI/EMI, I²C, UART/USART
• Peripherals: DMA, LVD, PWM, WDT
• Number Of I /o: 84
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 40K x 8
• Voltage - Supply (vcc/vdd): 2.85 V ~ 3.6 V
• Data Converters: A/D 12x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

V850ES/JG3
R01UH0015EJ0300 Rev.3.00
Sep 30, 2010
(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 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 CBnRXL
register.
Reset sets this register to 0000H.
In addition to reset input, the CBnRX register can be initialized by clearing (to 0) the CBnPWR bit of the CBnCTL0
register.
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 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 CBnTXL register.
Reset sets this register to 0000H.
Remark
(n = 0 to 4)
(n = 0 to 4)
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
R
R/W
Address: CB0RX FFFFFD04H, CB1RX FFFFFD14H,
CHAPTER 16 3-WIRE VARIABLE-LENGTH SERIAL I/O (CSIB)
Address: CB0TX FFFFFD06H, CB1TX FFFFFD16H,
CB2RX FFFFFD24H, CB3RX FFFFFD34H,
CB4RX FFFFFD44H
CB2TX FFFFFD26H, CB3TX FFFFFD36H,
CB4TX FFFFFD46H
Write to CBnTX register
Read from CBnRX register
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