UPD70F3451GC-UBT-A Renesas Electronics America, UPD70F3451GC-UBT-A Datasheet - Page 1020

• Manufacturer Part Number: UPD70F3451GC-UBT-A
• Description: MCU 32BIT 128KB FLASH 80LQFP
• Manufacturer: Renesas Electronics America
• Series: V850E/Ix3r

Specifications of UPD70F3451GC-UBT-A

• Core Processor: RISC
• Core Size: 32-Bit
• Speed: 64MHz
• Connectivity: CSI, I²C, UART/USART
• Peripherals: DMA, LVD, PWM, WDT
• Number Of I /o: 44
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 3.5 V ~ 5.5 V
• Data Converters: A/D 10x12b, 4x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

1018
(2) Restore
Execution is restored from an exception trap by the DBRET instruction. When the DBRET instruction is
executed, the CPU performs the following processing, and transfers control to the address of the restored PC.
<1> Loads the restored PC and PSW from DBPC and DBPSW.
<2> Transfers control to the address of the restored PC and PSW.
The restore processing from an exception trap is shown below.
Caution DBPC and DBPSW can be accessed only during the period between when the illegal
opcode is executed and when the DBRET instruction is executed.
CHAPTER 20 INTERRUPT/EXCEPTION PROCESSING FUNCTION
Figure 20-11. Restore Processing from Exception Trap
CPU processing
Figure 20-10. Exception Trap Processing
PC
PSW
Jump to address of restored PC
User’s Manual U18279EJ3V0UD
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
00000060H