UPD70F3451GC-UBT-A Renesas Electronics America, UPD70F3451GC-UBT-A Datasheet - Page 99

• 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: -

3.4.9
V850E/IF3 and V850E/IG3, a wait set by the VSWC register is required in addition to those 3 clocks. Set 13H (set
wait for 4 clocks) to VSWC.
The VSWC register is a register that controls the bus access wait for the on-chip peripheral I/O registers.
Access to on-chip peripheral I/O registers of the V850E1 CPU core is basically made in 3 clocks; however, in the
This register can be read or written in 8-bit units (address: FFFFF06EH, initial value: 77H).
Caution When using the V850E/IF3 and V850E/IG3, the VSWC register must be set first.
Remark
System wait control register (VSWC)
Set other registers if necessary after setting the VSWC register.
When a register includes status flags that indicate the statuses of the on-chip peripheral functions (such
as UAnSTR) or a register that indicates the count value of a timer (such as TAAnCNT) is accessed, a
register access retry operation takes place if the timing at which the flag and count value changes and
the timing of the register access overlap. Consequently, access to the on-chip peripheral I/O register
may take a long time.
CPU Clock Frequency (f
500 kHz ≤ f
CHAPTER 3 CPU FUNCTION
User’s Manual U18279EJ3V0UD
CPU
≤ 64 MHz
CPU
)
VSWC Set Value
13H
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