UPD78F0886GA(A)-GAM-AX NEC, UPD78F0886GA(A)-GAM-AX Datasheet - Page 99

• Manufacturer Part Number: UPD78F0886GA(A)-GAM-AX
• Description: 8BIT MCU, 60K FLASH, 3KB RAM, CAN
• Manufacturer: NEC

Specifications of UPD78F0886GA(A)-GAM-AX

• Controller Family/series: UPD78F
• No. Of I/o's: 41
• Ram Memory Size: 3KB
• Cpu Speed: 20MHz
• No. Of Timers: 8
• No. Of Pwm Channels: 6
• Digital Ic Case Style: LQFP
• Core Size: 8bit
• Program Memory Size: 60KB
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

[Instruction format]
[Operation]
[Operand]
[Flag]
[Description]
[Caution]
RETI
None
• This is a return instruction from the vectored interrupt.
• The data saved to the stack returns to the PC and the PSW, and the program returns from the interrupt service
• This instruction cannot be used for return from the software interrupt with the BRK instruction.
• None of interrupts are acknowledged between this instruction and the next instruction to be executed.
• The NMIS flag is set to 1 by acknowledgment of a non-maskable interrupt, and cleared to 0 by the RETI
When the return from non-maskable interrupt servicing is performed by an instruction other than the RETI
instruction, the NMIS flag is not cleared to 0, and therefore no interrupts (including non-maskable interrupts)
except software interrupts can be acknowledged.
routine.
instruction.
R
Z
AC
R
RETI
PC
PC
PSW ← (SP+2),
SP
NMIS ← 0
CY
R
L
H
← (SP),
← (SP+1),
← SP+3,
CHAPTER 5 EXPLANATION OF INSTRUCTIONS
User's Manual U12326EJ4V0UM
Return from Hardware Vectored Interrupt
Return from Interrupt
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