UPD70F3737GF-GAS-AX Renesas Electronics America, UPD70F3737GF-GAS-AX Datasheet - Page 815
UPD70F3737GF-GAS-AX
Manufacturer Part Number
UPD70F3737GF-GAS-AX
Description
MCU 32BIT V850ES/JX3-L 100-LQFP
Manufacturer
Renesas Electronics America
Series
V850ES/Jx3-Lr
Datasheet
1.UPD70F3737GF-GAS-AX.pdf
(1071 pages)
Specifications of UPD70F3737GF-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
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
8K 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
-
Available stocks
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Manufacturer
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Company:
Part Number:
UPD70F3737GF-GAS-AX
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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21.6 Multiple Interrupt Servicing Control
higher priority level is generated. The higher priority interrupt request signal is then acknowledged and the interrupt is
serviced.
newly generated interrupt request signal will be held pending.
service routine, multiple interrupt control must be performed while interrupts are enabled (ID bit = 0). If a maskable
interrupt or software exception occurs in a maskable interrupt or software exception service program, EIPC and
EIPSW must be saved.
In multiple interrupt servicing control, the servicing of an interrupt is stopped if an interrupt request signal that has a
If an interrupt request signal with a lower or equal priority level is generated while an interrupt is being serviced, the
Multiple interrupt servicing control is performed when interrupts are enabled (PSW.ID bit = 0). Even in an interrupt
The following example shows the procedure for servicing multiple interrupts.
(1) To acknowledge maskable interrupt request signals in a service program
Service program for maskable interrupt or exception
• EIPC saved to memory or register
• EIPSW saved to memory or register
• EI instruction (enables interrupt acknowledgment)
• DI instruction (disables interrupt acknowledgment)
• Saved value restored to EIPSW
• Saved value restored to EIPC
• RETI instruction
…
…
…
…
…
…
CHAPTER 21 INTERRUPT SERVICING/EXCEPTION PROCESSING FUNCTION
User’s Manual U18953EJ5V0UD
←Acknowledges maskable interrupt
813
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