PIC16C64T-04I/SP 查看數據表（PDF） - Microchip Technology

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PIC16C64T-04I/SP

8-Bit CMOS Microcontrollers

Microchip Technology 

PIC16C6X

TABLE 5-11: PORTE FUNCTIONS

Name

RE0/RD

RE1/WR

RE2/CS

Bit# Buffer Type Function

bit0

ST/TTL(1) Input/output port pin or Read control input in parallel slave port mode.

RD

1 = Not a read operation

0 = Read operation. The system reads the PORTD register (if

chip selected)

bit1

ST/TTL(1) Input/output port pin or Write control input in parallel slave port mode.

WR

1 = Not a write operation

0 = Write operation. The system writes to the PORTD register (if

chip selected)

bit2

ST/TTL(1) Input/output port pin or Chip select control input in parallel slave port

mode.

CS

1 = Device is not selected

0 = Device is selected

Legend: ST = Schmitt Trigger input, TTL = TTL input

Note 1: Buffer is a Schmitt Trigger when in I/O mode, and a TTL buffer when in Parallel Slave Port (PSP) mode.

TABLE 5-12: SUMMARY OF REGISTERS ASSOCIATED WITH PORTE

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 — —

—

—

—

RE2

RE1

RE0 ---- -xxx ---- -uuu

89h

TRISE IBF OBF IBOV PSPMODE — PORTE Data Direction Bits

0000 -111 0000 -111

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

© 1997 Microchip Technology Inc.

DS30234D-page 59

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