Datasheet

 2004 Microchip Technology Inc. DS30498C-page 69

PIC16F7X7

R-0 R-0 R/W-0 R/W-0 U-0 R/W-1 R/W-1 R/W-1

IBF OBF IBOV PSPMODE —

(1)

TRISE2 TRISE1 TRISE0

bit 7 bit 0

bit 7 Parallel Slave Port Status/Control bits:

IBF: Input Buffer Full Status bit

1 = A word has been received and is waiting to be read by the CPU

0 = No word has been received

bit 6 OBF: Output Buffer Full Status bit

1 = The output buffer still holds a previously written word

0 = The output buffer has been read

bit 5 IBOV: Input Buffer Overflow Detect bit (in Microprocessor mode)

1 = A write occurred when a previously input word has not been read (must be cleared in

software)

0 = No overflow occurred

bit 4 PSPMODE: Parallel Slave Port Mode Select bit

1 = Parallel Slave Port mode

0 = General Purpose I/O mode

bit 3 Unimplemented: Read as ‘1’

(1)

Note 1: RE3 is an input only. The state of the TRISE3 bit has no effect and will always read ‘1’.

bit 2 PORTE Data Direction bits:

TRISE2: Direction Control bit for pin RE2/CS/AN7

1 = Input

0 = Output

bit 1 TRISE1: Direction Control bit for pin RE1/WR

/AN6

1 = Input

0 = Output

bit 0 TRISE0: Direction Control bit for pin RE0/RD

/AN5

1 = Input

0 = Output

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown