; LATB.
;
; If any of RB5, RB6 or RB7 is an output which would be electrically
-; floating if left in tristate (Z state by the PIC) then before
+; floating if left in tristate (Z state) by the PIC then before
; calling serial_init the main program must have configured the
; appropriate TRISB bit(s) as outputs - presumably, after having
; configured the corresponding LATB bit(s). This will avoid excessive
; interrupts disabled. It is permissible for serial_write_please to
; be interrupted by an invocation of serial_interrupt or vice versa.
;
-; For example, if the main program has a buffer of characters for
+; Use example: if the main program has a buffer of characters for
; transmission, serialu_write_ready would call serial_write_byte if
; the buffer had something in it. If it didn't then it would simply
; return. When something is put in the buffer, the main program would