PIC16F1825T-ESS datasheet(98/448 Pages) MICROCHIP

98 / 448 page

PIC16(L)F1825/1829

DS41440C-page 98

 2010-2012 Microchip Technology Inc.

8.6.9

PIR4 REGISTER(1)

The PIR4 register contains the interrupt flag bits, as

shown in Register 8-9.

TABLE 8-1:

SUMMARY OF REGISTERS ASSOCIATED WITH INTERRUPTS

Note 1: The PIR4 register is available only on the

PIC16(L)F1829 device.

2: 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.

PIR4: PERIPHERAL INTERRUPT REQUEST REGISTER 4(1)

U-0

R/W/HS-0/0 R/W/HS-0/0

—

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

HS = Bit is set by hardware

bit 7-6

Unimplemented: Read as ‘0’

bit 1

BCL2IF: MSSP2 Bus Collision Interrupt Flag bit

1 = A Bus Collision was detected (must be cleared in software)

0 = No Bus collision was detected

bit 0

SSP2IF: Master Synchronous Serial Port 2 (MSSP2) Interrupt Flag bit

1 = The Transmission/Reception/Bus Condition is complete (must be cleared in software)

0 = Waiting to Transmit/Receive/Bus Condition in progress

Note 1:

This register is only available on PIC16(L)F1829.

Name

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

on Page

INTCON

GIE

PEIE

TMR0IE

INTE

IOCIE

TMR0IF

INTF

IOCIF

OPTION_REG

WPUEN

INTEDG

TMR0CS

TMR0SE

PSA

PS<2:0>

185

PIE1

TMR1GIE

ADIE

RCIE

TXIE

SSP1IE

CCP1IE

TMR2IE

TMR1IE

PIE2

OSFIE

C2IE

C1IE

EEIE

BCL1IE

—

CCP2IE

PIE3

—

CCP4IE

CCP3IE

TMR6IE

—TMR4IE

—

PIE4(1)

—

BCL2IE

SSP2IE

PIR1

TMR1GIF

ADIF

RCIF

TXIF

SSP1IF

CCP1IF

TMR2IF

TMR1IF

PIR2

OSFIF

C2IF

C1IF

EEIF

BCL1IF

—

CCP2IF

PIR3

—

CCP4IF

CCP3IF

TMR6IF

—TMR4IF

—

PIR4(1)

—

BCL2IF

SSP2IF

Legend:

— Unimplemented locations read as ‘0’. Shaded cells are not used by interrupts.

Note 1:

PIC16(L)F1829 only.

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