UPD70F3714GC-8BS-A Renesas Electronics America, UPD70F3714GC-8BS-A Datasheet - Page 574

• Manufacturer Part Number: UPD70F3714GC-8BS-A
• Description: MCU 32BIT V850ES/LX2 64-LQFP
• Manufacturer: Renesas Electronics America
• Series: V850ES/Ix2r

Specifications of UPD70F3714GC-8BS-A

• Core Processor: RISC
• Core Size: 32-Bit
• Speed: 20MHz
• Connectivity: CSI, UART/USART
• Peripherals: LVD, PWM, WDT
• Number Of I /o: 39
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 6K x 8
• Voltage - Supply (vcc/vdd): 3.5 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

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572
(2) Restore
Recovery from an exception trap is carried out by the DBRET instruction. By executing the DBRET instruction,
the CPU carries out the following processing and controls the address of the restored PC.
<1> Loads the restored PC and PSW from DBPC and DBPSW.
<2> Transfers control to the address indicated by the restored PC and PSW.
Caution DBPC and DBPSW can be accessed only during the period between when the illegal opcode
The restore processing from an exception trap is shown below.
is executed and when the DBRET instruction is executed.
CHAPTER 14 INTERRUPT/EXCEPTION PROCESSING FUNCTION
Figure 14-10. Restore Processing from Exception Trap
CPU processing
Figure 14-9. Exception Trap Processing
PC
PSW
Jump to address of restored PC
User’s Manual U17716EJ2V0UD
DBRET instruction
DBPC
DBPSW
PSW.NP
PSW.EP
PSW.ID
PC
Exception trap (ILGOP) occurs
Exception processing
DBPC
DBPSW
Restored PC
PSW
1
1
1
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