i would like to connect my serial nmea rikaline gs mouse to a pic16f690.

looking for the pinout i found:
http://home.tiscali.nl/~t_aalberts/GPS_IRDA_FAQ.htm

should i use the ttl level pins? i guess so.

Now i beleive i can use the pic16f690 eusart to get nmea strings and connect to 3 digits 7segments led display?