UPD70F3738GF-GAS-AX Renesas Electronics America, UPD70F3738GF-GAS-AX Datasheet - Page 791

• 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: -

21.2.1 Operation
control to the handler routine.
If a non-maskable interrupt request signal is generated, the CPU performs the following processing and transfers
<1> Saves the current PC to FEPC.
<2> Saves the current PSW to FEPSW.
<3> Writes exception code (0010H, 0020H) to the higher halfword (FECC) of ECR.
<4> Sets the PSW.NP and PSW.ID bits to 1 and clears the PSW.EP bit to 0.
<5> Sets the handler address (00000010H, 00000020H) corresponding to the non-maskable interrupt to the PC,
The servicing of a non-maskable interrupt is shown below.
and transfers control.
CPU processing
acknowledged
INTC
CHAPTER 21 INTERRUPT SERVICING/EXCEPTION PROCESSING FUNCTION
Non-maskable interrupt request
Figure 21-2. Non-Maskable Interrupt Servicing
FEPC
FEPSW
ECR.FECC
PSW.NP
PSW.EP
PSW.ID
PC
Interrupt servicing
NMI input
PSW.NP
User’s Manual U18953EJ5V0UD
0
PC
PSW
0010H, 0020H
1
0
1
00000010H,
00000020H
1
Interrupt request held pending
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