UPD70F3451GC-UBT-A Renesas Electronics America, UPD70F3451GC-UBT-A Datasheet - Page 869

• 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: -

2
CHAPTER 17 I
C BUS
(3) IIC flag register 0 (IICF0)
2
2
IICF0 is a register that set the operation mode of I
C and indicate the status of the I
C bus.
These registers can be read or written in 8-bit or 1-bit units. However, the STCF0 and IICBSY0 bits are read-
only.
The IICRSV0 bit can be used to enable/disable the communication reservation function (see 17.14
Communication Reservation).
The STCEN0 bit can be used to set the initial value of the IICBSY0 bit (see 17.15 Cautions).
2
The IICRSV0 and STCEN0 bits can be written only when the operation of I
C is disabled (IICC0.IICE0 bit = 0).
When operation is enabled, the IICF0 register can be read.
Reset sets this register to 00H.
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User’s Manual U18279EJ3V0UD