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pic18f4550 configuration

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hejas.sp

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hi:)
how many uart pins does pic18f4450 has? someone kindly help .many thanks.
 

how many uart pins does pic18f4450 has?

The device has only one USART.

More in depth information is readily available from the device datasheet:

PIC18F2450/4450 Datasheet

Or product page:

PIC18F4450 Product Page


Reference: PIC18F2450/4450 Datasheet, Section: 15.0 ENHANCED UNIVERSAL SYNCHRONOUS RECEIVER TRANSMITTER (EUSART)

The pins of the Enhanced USART are multiplexed
with PORTC. In order to configure RC6/TX/CK and
RC7/RX/DT as an EUSART:

• bit SPEN (RCSTA<7>) must be set (= 1)

• bit TRISC<7> must be set (= 1)

• bit TRISC<6> must be cleared (= 0) for Asynchronous and Synchronous Master modes or set (= 1) for Synchronous Slave mode

BigDog
 

If you are using the 40 pin DIP version:

In asynchronous mode:

TX on pin 25
RX on pin 26

In Synchronous mode:

CK on pin 25
DT on pin 26

You will need a ground connection in either mode.

At least that is my understanding of the datasheet.

EDIT: BigDog got there first..
 

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