Protech Systems BM-0947 User Manual page 102

in al, dx
and al, 20h
out dx, al
;------ Set timeout interval as 30seconds and start counting ---------------------------------
dec dx
mov al, 0f6h
out dx, al
inc dx
mov al, 1Eh
out dx, al
;------ Exit the extended function mode --------------------------------------------------------
dec dx
mov al, 0aah
out dx, al
'
BM-0947 USER S MANUAL
Appendix B Technical Summary
Page: B-16