UPD78F0552MA-FAA-AX Renesas Electronics America, UPD78F0552MA-FAA-AX Datasheet - Page 649

• Manufacturer Part Number: UPD78F0552MA-FAA-AX
• Description: MCU 8BIT 16-SSOP
• Manufacturer: Renesas Electronics America
• Series: 78K0/Kx2-Lr

Specifications of UPD78F0552MA-FAA-AX

• Core Processor: 78K/0
• Core Size: 8-Bit
• Speed: 10MHz
• Connectivity: I²C, LIN, UART/USART
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 9
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

78K0/Kx2-L
17.4.4 Interrupt request hold
request acknowledgment is held pending until the end of execution of the next instruction. These instructions (interrupt
request hold instructions) are listed below.
R01UH0028EJ0400 Rev.4.00
Sep 27, 2010
There are instructions where, even if an interrupt request is issued for them while another instruction is being executed,
• 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
Caution The BRK instruction is not one of the above-listed interrupt request hold instructions. However, the
Figure 17-29 shows the timing at which interrupt requests are held pending.
Remarks 1. Instruction N: Interrupt request hold instruction
CPU processing
PR1H registers.
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 ××PR (priority level) values do not affect the operation of ××IF (interrupt request).
IF
Instruction N
Figure 17-29. Interrupt Request Hold
Instruction M
CHAPTER 17 INTERRUPT FUNCTIONS
PSW and PC saved, jump
to interrupt servicing
Interrupt servicing
program
635