PIC16C781T-I/SO Microchip Technology, PIC16C781T-I/SO Datasheet - Page 23

• Manufacturer Part Number: PIC16C781T-I/SO
• Description: IC MCU CMOS 8BIT 1K 20MHZ 20SOIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Cr

Specifications of PIC16C781T-I/SO

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 13
• Program Memory Size: 1.75KB (1K x 14)
• Program Memory Type: OTP
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 8x8b; D/A 1x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-SOIC (7.5mm Width)
• For Use With: AC164028 - MODULE SKT PROMATEII 20SOIC/DIP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Connectivity: -
• Other names: PIC16C781TI/SO

2.7
This register contains the individual flag bits for the
peripheral interrupts.
REGISTER 2-5:
2001 Microchip Technology Inc.
PIR1 Register
bit 7
bit 6
bit 5
bit 4
bit 3-1
bit 0
PERIPHERAL INTERRUPT REGISTER (PIR1 0Ch)
Legend:
R = Readable bit
- n = Value at POR
bit7
LVDIF: Low Voltage Detect Interrupt Flag bit
1 = The supply voltage has fallen below the specified LVD voltage (must be cleared in software)
0 = The supply voltage is greater than the specified LVD voltage
ADIF: Analog-to-Digital Converter Interrupt Flag bit
1 = An ADC conversion completed (must be cleared in software)
0 = The ADC conversion is not complete
C2IF: Comparator C2 Interrupt Flag bit
1 = Comparator C2 input has crossed the threshold (must be cleared in software)
0 = Comparator C2 input has not crossed the threshold
C1IF: Comparator C1 Interrupt Flag bit
1 = Comparator C1 input has crossed the threshold (must be cleared in software)
0 = Comparator C1 input has not crossed the threshold
Unimplemented: Read as ‘0’
TMR1IF: TMR1 Overflow Interrupt Flag bit
1 = TMR1 register overflowed (must be cleared in software)
0 = TMR1 register did not overflow
R/W-0
LVDIF
R/W-0
ADIF
R/W-0
C2IF
Preliminary
W = Writable bit
’1’ = Bit is set
R/W-0
C1IF
Note:
U = Unimplemented bit, read as ‘0’
’0’ = Bit is cleared
U-0
—
Interrupt flag bits are set when an interrupt
condition occurs, regardless of the state of
its corresponding enable bit, or the global
enable bit, GIE (INTCON<7>). User soft-
ware should ensure the appropriate inter-
rupt flag bits are clear prior to enabling an
interrupt.
PIC16C781/782
U-0
—
x = Bit is unknown
U-0
DS41171A-page 21
—
TMR1IF
R/W-0
bit 0