UPD70F3738GF-GAS-AX Renesas Electronics America, UPD70F3738GF-GAS-AX Datasheet - Page 798

• Manufacturer Part Number: UPD70F3738GF-GAS-AX
• Description: MCU 32BIT V850ES/JX3-L 100-LQFP
• Manufacturer: Renesas Electronics America
• Series: V850ES/Jx3-Lr

Specifications of UPD70F3738GF-GAS-AX

• Core Processor: RISC
• Core Size: 32-Bit
• Speed: 20MHz
• Connectivity: CSI, EBI/EMI, I²C, UART/USART
• Peripherals: DMA, LVD, PWM, WDT
• Number Of I /o: 84
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 2.2 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: -

796
Interrupt request a
Interrupt request e
Interrupt request g
Interrupt request c
Caution To service multiple interrupts, the values of the EIPC and EIPSW registers must be saved
Remarks 1. a to u in the figure are the temporary names of interrupt request signals shown for the sake of
Figure 21-7. Example of Processing in Which Another Interrupt Request Signal Is Issued
(level 3)
(level 3)
(level 2)
(level 1)
2. The default priority in the figure indicates the relative priority between two interrupt request
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 21 INTERRUPT SERVICING/EXCEPTION PROCESSING FUNCTION
EI
Interrupt request f
Interrupt request d
Interrupt request h
Interrupt
request b
(level 2)
(level 1)
(level 3)
(level 2)
While an Interrupt Is Being Serviced (1/2)
EI
EI
EI
Servicing of a
Servicing of c
Servicing of d
Servicing of e
Servicing of f
Servicing of g
Servicing of h
User’s Manual U18953EJ5V0UD
Servicing of b
Interrupt request b is acknowledged because the
priority of b is higher than that of a and interrupts are
enabled.
Although the priority of interrupt request d is higher
than that of c, d is held pending because interrupts
are disabled.
Interrupt request f is held pending even if interrupts are
enabled because its priority is lower than that of e.
Interrupt request h is held pending even if interrupts are
enabled because its priority is the same as that of g.