UPD70F3451GC-UBT-A Renesas Electronics America, UPD70F3451GC-UBT-A Datasheet - Page 1001

• 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: -

Default priority
a > b > c
Interrupt request a (level 2)
Interrupt request b (level 1)
Interrupt request c (level 1)
Caution To perform multiple interrupt servicing, the values of the EIPC and EIPSW registers must be
Remarks 1. a to c in the figure are assumed names given to interrupt request signals for the sake of
Figure 20-7. Example of Servicing Interrupt Request Signals Generated Simultaneously
2. The default priority in the figure indicates the relative priority between two interrupt request
saved before executing the EI instruction. When returning from multiple interrupt servicing,
restore the values of EIPC and EIPSW after executing the DI instruction.
explanation.
signals.
Main routine
CHAPTER 20 INTERRUPT/EXCEPTION PROCESSING FUNCTION
EI
User’s Manual U18279EJ3V0UD
Servicing of interrupt request b
Servicing of interrupt request c
Servicing of interrupt request a
.
.
Interrupt request b and c are
acknowledged first according to
their priorities.
Because the priorities of b and c are
the same, b is acknowledged first
according to the default priority.
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