PIC16C745SLASHP datasheet(39/158 Pages) MICROCHIP

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DS41124A-page 39

PIC16C745/765

PORTE DATA DIRECTION CONTROL REGISTER(1) (TRISE: 89h)

TABLE 5-10:

SUMMARY OF REGISTERS ASSOCIATED WITH PORTE

R-0

R/W-0

U-0

R/W-1

IBF

OBF

IBOV

PSPMODE

—

TRISE2

TRISE1

TRISE0

= Readable bit

W = Writable bit

= Unimplemented bit,

read as ‘0’

- n = Value at POR reset

bit7

bit0

bit 7 :

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'

PORTE Data Direction Bits

bit 2:

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

= Input

= Output

bit 1:

TRISE1: Direction Control bit for pin RE1/WR/AN6

= Input

= Output

bit 0:

TRISE0: Direction Control bit for pin RE0/RD/AN5

= Input

= Output

Note 1:

PIC16C765 only.

Address

Name

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Value on:

POR,

BOR

Value on all

other resets

09h

PORTE(1)

—

—RE2

RE1

RE0

---- -xxx

---- -uuu

89h

TRISE(1)

IBF

OBF

IBOV

PSPMODE

—

PORTE Data Direction Bits

0000 -111

9Fh

ADCON1

—

PCFG2

PCFG1

PCFG0

---- -000

Legend: x = unknown, u = unchanged, - = unimplemented read as '0'. Shaded cells are not used by PORTE.

Note 1:

PIC16C765 only.

PIC16C745/P Datasheet(PDF) 39 Page - Microchip Technology

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