UPD78F0413GA-GAM-AX NEC, UPD78F0413GA-GAM-AX Datasheet - Page 453

• Manufacturer Part Number: UPD78F0413GA-GAM-AX
• Description: 8BIT UC, 32K FLASH, 1KB RAM, LCD
• Manufacturer: NEC

Specifications of UPD78F0413GA-GAM-AX

• Controller Family/series: UPD78F
• No. Of I/o's: 30
• Ram Memory Size: 1024Byte
• Cpu Speed: 10MHz
• No. Of Timers: 8
• No. Of Pwm: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 32KB
• Oscillator Type: External, Internal

17.4.4 Interrupt request hold
executed, request acknowledgment is held pending until the end of execution of the next instruction.
instructions (interrupt request hold instructions) are listed below.
CPU processing
There are instructions where, even if an interrupt request is issued for them while another instruction is being
Caution The BRK instruction is not one of the above-listed interrupt request hold instructions. However,
Figure 17-11 shows the timing at which interrupt requests are held pending.
Remarks 1. Instruction N: Interrupt request hold instruction
MOV PSW, #byte
MOV A, PSW
MOV PSW, A
MOV1 PSW. bit, CY
MOV1 CY, PSW. bit
AND1 CY, PSW. bit
OR1 CY, PSW. bit
XOR1 CY, PSW. bit
SET1 PSW. bit
CLR1 PSW. bit
RETB
RETI
PUSH PSW
POP PSW
BT PSW. bit, $addr16
BF PSW. bit, $addr16
BTCLR PSW. bit, $addr16
EI
DI
Manipulation instructions for the IF0L, IF0H, IF1L, IF1H, MK0L, MK0H, MK1L, MK1H, PR0L, PR0H, PR1L, and
PR1H registers.
the software interrupt activated by executing the BRK instruction causes the IE flag to be cleared.
Therefore, even if a maskable interrupt request is generated during execution of the BRK
instruction, the interrupt request is not acknowledged.
2. Instruction M: Instruction other than interrupt request hold instruction
3. The
IF
PR (priority level) values do not affect the operation of
Instruction N
Figure 17-11. Interrupt Request Hold
CHAPTER 17 INTERRUPT FUNCTIONS
User’s Manual U18698EJ1V0UD
Instruction M
PSW and PC saved, jump
to interrupt servicing
IF (interrupt request).
Interrupt servicing
program
These
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