UPD70F3738GF-GAS-AX Renesas Electronics America, UPD70F3738GF-GAS-AX Datasheet - Page 812

• 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: -

810
(2) Restoration
Cautions 1. DBPC and DBPSW can be accessed only during the interval between the execution of an
Execution is returned from an exception trap by using 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 saved PC and PSW from DBPC and DBPSW.
<2> Transfers control back to the address of the restored PC and PSW.
The processing for returning from an exception trap is shown below.
2. If an illegal opcode is executed, specify the default settings or stop the subsequent
CHAPTER 21 INTERRUPT SERVICING/EXCEPTION PROCESSING FUNCTION
illegal opcode and the DBRET instruction.
processing.
CPU processing
Figure 21-12. Returning from Exception Trap
Figure 21-11. Exception Trap Processing
PC
PSW
Jump to address of restored PC
User’s Manual U18953EJ5V0UD
DBRET instruction
DBPC
DBPSW
PSW.NP
PSW.EP
PSW.ID
PC
Exception trap (ILGOP) occurs
Exception processing
DBPC
DBPSW
PC
PSW
1
1
1
00000060H