PIC16F1847-I/SO Microchip Technology, PIC16F1847-I/SO Datasheet - Page 85
PIC16F1847-I/SO
Manufacturer Part Number
PIC16F1847-I/SO
Description
14 KB Flash, 1K Bytes RAM, 32 MHz Int. Osc, 16 I/0, Enhanced Mid Range Core 18 S
Manufacturer
Microchip Technology
Datasheets
1.PIC16F1847-ISO.pdf
(408 pages)
2.PIC16F1847-ISO.pdf
(408 pages)
3.PIC16F1847-ISO.pdf
(10 pages)
Specifications of PIC16F1847-I/SO
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC16F1847-I/SO
Manufacturer:
MICROCHIP
Quantity:
30 000
- Current page: 85 of 408
- Download datasheet (4Mb)
8.1
Interrupts are disabled upon any device Reset. They
are enabled by setting the following bits:
• GIE bit of the INTCON register
• Interrupt Enable bit(s) for the specific interrupt
• PEIE bit of the INTCON register (if the Interrupt
The INTCON, PIR1, PIR2, PIR3 and PIR4 registers
record individual interrupts via interrupt flag bits. Inter-
rupt flag bits will be set, regardless of the status of the
GIE, PEIE and individual interrupt enable bits.
The following events happen when an interrupt event
occurs while the GIE bit is set:
• Current prefetched instruction is flushed
• GIE bit is cleared
• Current Program Counter (PC) is pushed onto the
• Critical registers are automatically saved to the
• PC is loaded with the interrupt vector 0004h
The firmware within the Interrupt Service Routine (ISR)
should determine the source of the interrupt by polling
the interrupt flag bits. The interrupt flag bits must be
cleared before exiting the ISR to avoid repeated
interrupts. Because the GIE bit is cleared, any interrupt
that occurs while executing the ISR will be recorded
through its interrupt flag, but will not cause the
processor to redirect to the interrupt vector.
The RETFIE instruction exits the ISR by popping the
previous address from the stack, restoring the saved
context from the shadow registers and setting the GIE
bit.
For additional information on a specific interrupt’s
operation, refer to its peripheral chapter.
2011 Microchip Technology Inc.
event(s)
Enable bit of the interrupt event is contained in the
PIEx register)
stack
shadow registers (See
Context
Note 1: Individual interrupt flag bits are set,
2: All interrupts will be ignored while the GIE
Operation
Saving”)
regardless of the state of any other
enable bits.
bit is cleared. Any interrupt occurring
while the GIE bit is clear will be serviced
when the GIE bit is set again.
Section 8.5 “Automatic
Preliminary
8.2
Interrupt latency is defined as the time from when the
interrupt event occurs to the time code execution at the
interrupt vector begins. The latency for synchronous
interrupts is 3 or 4 instruction cycles. For asynchronous
interrupts, the latency is 3 to 5 instruction cycles,
depending on when the interrupt occurs. See
and
details.
Section 8.3 “Interrupts During Sleep”
Interrupt Latency
PIC16(L)F1847
DS41453A-page 85
Figure 8-3
for more
Related parts for PIC16F1847-I/SO
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
IC, 8BIT MCU, PIC16F, 32MHZ, SOIC-18
Manufacturer:
Microchip Technology
Datasheet:
Part Number:
Description:
IC, 8BIT MCU, PIC16F, 32MHZ, SSOP-20
Manufacturer:
Microchip Technology
Datasheet:
Part Number:
Description:
IC, 8BIT MCU, PIC16F, 32MHZ, DIP-18
Manufacturer:
Microchip Technology
Datasheet:
Part Number:
Description:
IC, 8BIT MCU, PIC16F, 32MHZ, QFN-28
Manufacturer:
Microchip Technology
Datasheet:
Part Number:
Description:
IC, 8BIT MCU, PIC16F, 32MHZ, QFN-28
Manufacturer:
Microchip Technology
Datasheet:
Part Number:
Description:
IC, 8BIT MCU, PIC16F, 32MHZ, QFN-28
Manufacturer:
Microchip Technology
Datasheet:
Part Number:
Description:
IC, 8BIT MCU, PIC16F, 32MHZ, SSOP-20
Manufacturer:
Microchip Technology
Datasheet:
Part Number:
Description:
IC, 8BIT MCU, PIC16F, 20MHZ, DIP-40
Manufacturer:
Microchip Technology
Datasheet:
Part Number:
Description:
IC, 8BIT MCU, PIC16F, 32MHZ, QFN-28
Manufacturer:
Microchip Technology
Datasheet:
Part Number:
Description:
IC, 8BIT MCU, PIC16F, 20MHZ, MQFP-44
Manufacturer:
Microchip Technology
Datasheet:
Part Number:
Description:
IC, 8BIT MCU, PIC16F, 20MHZ, QFN-20
Manufacturer:
Microchip Technology
Datasheet:
Part Number:
Description:
IC, 8BIT MCU, PIC16F, 32MHZ, QFN-28
Manufacturer:
Microchip Technology
Datasheet:
Part Number:
Description:
MCU 14KB FLASH 768B RAM 64-TQFP
Manufacturer:
Microchip Technology
Datasheet:
Part Number:
Description:
7 KB Flash, 384 Bytes RAM, 32 MHz Int. Osc, 16 I/0, Enhanced Mid Range Core, Low
Manufacturer:
Microchip Technology
Part Number:
Description:
14KB Flash, 512B RAM, 256B EEPROM, LCD, 1.8-5.5V 40 UQFN 5x5x0.5mm TUBE
Manufacturer:
Microchip Technology
Datasheet: