UPD70F3201YGC-YEU-A Renesas Electronics America, UPD70F3201YGC-YEU-A Datasheet - Page 441

• Manufacturer Part Number: UPD70F3201YGC-YEU-A
• Description: MCU 32BIT I2C 100TQFP
• Manufacturer: Renesas Electronics America
• Series: V850ES/Sx2r

Specifications of UPD70F3201YGC-YEU-A

• Core Processor: RISC
• Core Size: 32-Bit
• Speed: 20MHz
• Connectivity: CSI, EBI/EMI, I²C, UART/USART
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 68
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 2.2 V ~ 2.7 V
• Data Converters: A/D 12x10b; D/A 2x8b
• 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 the temporary names of interrupt requests shown for the sake of
saved before executing the EI instruction. When returning from multiple interrupt servicing,
restore the values of EIPC and EIPSW after executing the DI instruction.
2. The default priority in the figure indicates the relative priority between two interrupt requests.
Figure 17-7. Example of Servicing Interrupt Requests Simultaneously Generated
explanation.
Main routine
CHAPTER 17 INTERRUPT/EXCEPTION PROCESSING FUNCTION
EI
User’s Manual U15905EJ2V1UD
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.
439