6802 assembly help please.

Hi,
Could somebody please help me understand what's going on in this subroutine, processor is a 6802.


7198 ldx #$2000
719B clr x0006
719E tst $00, x
71A0 bpl L71A5
71A2 inc X0006
71A5 inx
71A6 cpx #$2005
71A9 bne L719E
71AB rts


Is it some kind of timer circuit???

Thanks in advance.