PIC16F1513T-I/SS 데이터 시트보기 (PDF) - Microchip Technology

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PIC16F1513T-I/SS

28-Pin Flash Microcontrollers with XLP Technology

Microchip Technology 

PIC16(L)F1512/3

12.5 PORTE Registers

PORTE is a 4-bit wide, bidirectional port. The

corresponding data direction register is TRISE. Setting a

TRISE bit (= 1) will make the corresponding PORTE pin

an input (i.e., put the corresponding output driver in a

High-Impedance mode). Clearing a TRISE bit (= 0) will

make the corresponding PORTE pin an output (i.e.,

enable the output driver and put the contents of the

output latch on the selected pin). The exception is RE3,

which is input only and its TRIS bit will always read as

‘1’. Example 12-1 shows how to initialize an I/O port.

Reading the PORTE register (Register 12-15) reads

the status of the pins, whereas writing to it will write to

the PORT latch. All write operations are

read-modify-write operations. Therefore, a write to a

port implies that the port pins are read, this value is

modified and then written to the PORT data latch

(LATE). RE3 reads ‘0’ when MCLRE = 1.

12.5.1 PORTE FUNCTIONS AND OUTPUT

PRIORITIES

PORTE has no peripheral outputs, so the PORTE

output has no priority function.

DS40001624C-page 112

 2012-2014 Microchip Technology Inc.

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