PIC16F74T-I/ML 查看數據表（PDF） - Microchip Technology

零件编号

产品描述 (功能)

生产厂家

PIC16F74T-I/ML

28/40-pin, 8-bit CMOS FLASH Microcontrollers

Microchip Technology 

PIC16F7X

TABLE 4-9: PORTE FUNCTIONS

Name

Bit# Buffer Type

Function

RE0/RD/AN5

RE1/WR/AN6

RE2/CS/AN7

bit0

ST/TTL(1) Input/output port pin or read control input in Parallel Slave Port mode or

analog input.

For RD (PSP mode):

1 = IDLE

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

pins (if chip selected).

bit1

ST/TTL(1) Input/output port pin or write control input in Parallel Slave Port mode

or analog input.

For WR (PSP mode):

1 = IDLE

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

register (if chip selected).

bit2

ST/TTL(1) Input/output port pin or chip select control input in Parallel Slave Port

mode or analog input.

For CS (PSP mode):

1 = Device is not selected

0 = 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.

TABLE 4-10: SUMMARY OF REGISTERS ASSOCIATED WITH PORTE

Addr Name Bit 7 Bit 6 Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Value on:

POR,

BOR

09h PORTE

—

—

—

—

—

RE2

RE1

RE0 ---- -xxx

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.

Value on all

other

RESETS

---- -uuu

0000 -111

---- -000

 2002 Microchip Technology Inc.

DS30325B-page 39

Share Link: