PIC16CR74ESLASHSP datasheet(41/172 Pages) MICROCHIP

41 / 172 page

DS21993C-page 39

PIC16CR7X

TABLE 4-9:

PORTE FUNCTIONS

TABLE 4-10:

SUMMARY OF REGISTERS ASSOCIATED WITH PORTE

Name

Bit#

Buffer Type

Function

RE0/RD/AN5

bit 0

ST/TTL(1)

Input/output port pin or read control input in Parallel Slave Port mode or

analog input.

For RD (PSP mode):

= Idle

= Read operation. Contents of PORTD register output to PORTD I/O

pins (if chip selected).

RE1/WR/AN6

bit 1

ST/TTL(1)

Input/output port pin or write control input in Parallel Slave Port mode

or analog input.

For WR (PSP mode):

=Idle

= Write operation. Value of PORTD I/O pins latched into PORTD

RE2/CS/AN7

bit 2

ST/TTL(1)

Input/output port pin or Chip Select control input in Parallel Slave Port

mode or analog input.

For CS (PSP mode):

= Device is not selected

= Device is selected

Legend:

ST = Schmitt Trigger input, TTL = TTL input

Note 1:

Input buffers are Schmitt Triggers when in I/O mode and TTL buffers when in Parallel Slave Port mode.

Addr

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

—

—RE2

RE1

RE0

---- -xxx

---- -uuu

89h

TRISE

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.

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