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PIC16F1946 Scheda tecnica(PDF) 101 Page - Microchip Technology

Il numero della parte PIC16F1946
Spiegazioni elettronici  64-Pin Flash-Based, 8-Bit CMOS Microcontrollers with LCD Driver and nanoWatt XLP Technology
PDF  448 Pages
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Produttore elettronici  MICROCHIP [Microchip Technology]
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 2010-2011 Microchip Technology Inc.
Preliminary
DS41414C-page 101
PIC16(L)F1946/1947
7.5.9
PIR4 REGISTER
The PIR4 register contains the interrupt flag bits, as
shown in Register 7-9.
Note:
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, of the INTCON register.
User
software
should
ensure
the
appropriate interrupt flag bits are clear prior
to enabling an interrupt.
REGISTER 7-9:
PIR4: PERIPHERAL INTERRUPT REQUEST REGISTER 4
U-0
U-0
R/W-0/0
R/W-0/0
U-0
U-0
R/W-0/0
R/W-0/0
—
—
RC2IF
TX2IF
—
—
BCL2IF
SSP2IF
bit 7
bit 0
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
u = Bit is unchanged
x = Bit is unknown
-n/n = Value at POR and BOR/Value at all other Resets
‘1’ = Bit is set
‘0’ = Bit is cleared
bit 7-6
Unimplemented:
Read as ‘0’
bit 5
RC2IF:
USART2 Receive Interrupt Flag bit
1
= Interrupt is pending
0
= Interrupt is not pending
bit 4
TX2IF:
USART2 Transmit Interrupt Flag bit
1
= Interrupt is pending
0
= Interrupt is not pending
bit 3-2
Unimplemented:
Read as ‘0’
bit 1
BCL2IF:
MSSP2 Bus Collision Interrupt Flag bit
1
= Interrupt is pending
0
= Interrupt is not pending
bit 0
SSP2IF:
Synchronous Serial Port (MSSP2) Interrupt Flag bit
1
= Interrupt is pending
0
= Interrupt is not pending



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