PIC16CR74ESLASHSP datasheet(40/172 Pages) MICROCHIP

40 / 172 page

PIC16CR7X

DS21993C-page 38

TRISE: (ADDRESS 89h)

R-0

R/W-0

U-0

R/W-1

IBF

OBF

IBOV

PSPMODE

—

Bit 2

Bit 1

Bit 0

bit 7

bit 0

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

bit 7

Parallel Slave Port Status/Control bits:

IBF: Input Buffer Full Status bit

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

= No word has been received

bit 6

OBF: Output Buffer Full Status bit

= The output buffer still holds a previously written word

= The output buffer has been read

bit 5

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

= A write occurred when a previously input word has not been read

(must be cleared in software)

= No overflow occurred

bit 4

PSPMODE: Parallel Slave Port Mode Select bit

= Parallel Slave Port mode

= General Purpose I/O mode

bit 3

Unimplemented: Read as ‘0’

bit 2

PORTE Data Direction bits:

Bit 2: Direction Control bit for pin RE2/CS/AN7

= Input

= Output

bit 1

Bit 1: Direction Control bit for pin RE1/WR/AN6

= Input

= Output

bit 0

Bit 0: Direction Control bit for pin RE0/RD/AN5

= Input

= Output

PIC16CR74E/SP Datasheet(PDF) 40 Page - Microchip Technology

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