PIC16C73-04/L Microchip Technology, PIC16C73-04/L Datasheet - Page 142

• Manufacturer Part Number: PIC16C73-04/L
• Description: 8-Bit CMOS Microcontrollers with A/D Converter
• Manufacturer: Microchip Technology

PIC16C7X
FIGURE 14-16: INTERRUPT LOGIC
FIGURE 14-17: INT PIN INTERRUPT TIMING
DS30390E-page 142
The following table shows which devices have which interrupts.
INSTRUCTION FLOW
Note 1: INTF flag is sampled here (every Q1).
GIE bit
(INTCON<7>)
PIC16C72
PIC16C73
PIC16C73A
PIC16C74
PIC16C74A
PIC16C76
PIC16C77
INTF flag
(INTCON<1>)
PSPIF
PSPIE
CCP2IF
CCP2IE
CLKOUT
INT pin
OSC1
Instruction
executed
Instruction
fetched
PC
Device
2: Interrupt latency = 3-4 Tcy where Tcy = instruction cycle time.
3: CLKOUT is available only in RC oscillator mode.
4: For minimum width of INT pulse, refer to AC specs.
5: INTF is enabled to be set anytime during the Q4-Q1 cycles.
Latency is the same whether Inst (PC) is a single cycle or a 2-cycle instruction.
ADIF
ADIE
TMR1IF
TMR1IE
3
T0IF
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Q1
RCIF
RCIE
TMR2IF
TMR2IE
Inst (PC-1)
Inst (PC)
1
Q2
INTF
Yes
Yes
Yes
Yes
Yes
Yes
Yes
PC
TXIF
TXIE
SSPIF
SSPIE
CCP1IF
CCP1IE
Q3
4
RBIF
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Q4
5
Q1
PSPIF
Yes
Yes
Yes
Yes
-
-
-
Inst (PC+1)
Inst (PC)
Q2
1
PC+1
ADIF
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Q3
Q4
RCIF
Yes
Yes
Yes
Yes
Yes
Yes
-
Interrupt Latency
Q1
Dummy Cycle
TXIF
T0IF
T0IE
INTF
INTE
RBIF
RBIE
PEIE
GIE
Yes
Yes
Yes
Yes
Yes
Yes
-
Q2
PC+1
—
SSPIF
Q3
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Q4
2
CCP1IF
Q1
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Dummy Cycle
Inst (0004h)
Q2
0004h
TMR2IF
Q3
Yes
Yes
Yes
Yes
Yes
Yes
Yes
1997 Microchip Technology Inc.
Wake-up (If in SLEEP mode)
Q4
TMR1IF
Q1
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Interrupt to CPU
Inst (0005h)
Q2
Inst (0004h)
0005h
CCP2IF
Q3
Yes
Yes
Yes
Yes
Yes
Yes
-
Q4