PIC17C7XX Datasheet, PDF (299/328 Pages) Microchip Technology – High-Performance 8-Bit CMOS EPROM Microcontrollers with 10-bit A/D

PIC17C7XX
FIGURE F-9: PIR2 REGISTER (ADDRESS: 10h, BANK 4)
R/W - 0 R/W - 0 R/W - 0 U - 0 R/W - 0 R/W - 0 R - 1 R - 0
SSPIF BCLIF
bit7
ADIF
—
CA4IF CA3IF TX2IF RC2IF R = Readable bit
bit0 ^{W = Writable bit}
-n = Value at POR reset
bit 7: SSPIF: Synchronous Serial Port (SSP) Interrupt Flag bit
1 = The SSP interrupt condition has occurred, and must be cleared in software before returning from the
interrupt service routine. The conditions that will set this bit are:
SPI
A transmission/reception has taken place.
I²C Slave / Master
A transmission/reception has taken place.
I²C Master
The initiated start condition was completed by the SSP module.
The initiated stop condition was completed by the SSP module.
The initiated restart condition was completed by the SSP module.
The initiated acknowledge condition was completed by the SSP module.
A start condition occurred while the SSP module was idle (Multimaster system).
A stop condition occurred while the SSP module was idle (Multimaster system).
0 = An SSP interrupt condition has NOT occurred.
bit 6:
BCLIF: Bus Collision Interrupt Flag bit
1 = A bus collision has occurred in the SSP, when configured for I²C master mode
0 = No bus collision has occurred
bit 5:
ADIF: A/D Module Interrupt Flag bit
1 = An A/D conversion is complete
0 = An A/D conversion is not complete
bit 4: Unimplemented: Read as '0'
bit 3:
CA4IF: Capture4 Interrupt Flag bit
1 = Capture event occurred on RE3/CAP4 pin
0 = Capture event did not occur on RE3/CAP4 pin
bit 2:
CA3IF: Capture3 Interrupt Flag bit
1 = Capture event occurred on RG4/CAP3 pin
0 = Capture event did not occur on RG4/CAP3 pin
bit 1:
TX2IF:USART2 Transmit Interrupt Flag bit (State controlled by hardware)
1 = USART2 Transmit buffer is empty
0 = USART2 Transmit buffer is full
bit 0:
RC2IF: USART2 Receive Interrupt Flag bit (State controlled by hardware)
1 = USART2 Receive buffer is full
0 = USART2 Receive buffer is empty
© 1998 Microchip Technology Inc.
DS30289A-page 299