LGX AU957 SERIES, User Manual

Page: 84 / 84

$SSHQGL[
$:DWFKGRJ7LPHU:'76HWWLQJ
:'7 LV ZLGHO\ DSSOLHG WR LQGXVWU\ FRPSXWHUV WR PRQLWRU &38 DFWLYLWLHV 7KH
SURJUDPPHGDSSOLFDWLRQWULJJHUV:'7E\DGHTXDWHWLPHUVHWWLQJGHSHQGLQJRQ
LWV UHTXLUHPHQW %HIRUH :'7 FRXQWV GRZQ WR ]HUR WKH IXQFWLRQDO V\VWHP ZLOO
UHVHWWKHFRXQWHU,QFDVHWKH:'7FRXQWHULVQRWUHVHWE\DQDEQRUPDOV\VWHP
LWZLOOFRXQWGRZQWR]HURDQGWKHQUHVHWWKHV\VWHPDXWRPDWLFDOO\
7KLV FRPSXWHU VXSSRUWV WKH ZDWFKGRJ WLPHU XS WR OHYHOV IRU XVHUV IRU
VRIWZDUHSURJHUHXQGHULVWKHVRXUFHFRGHZULWWHQLQ&IRUD:'7
DSSOLFDWLRQH[DPSOH
6DPSOHFRGH
outportb(0x2e, 0x87); /* initial IO port */
outportb(0x2e, 0x87); /* twice, */
outportb(0x2e, 0x07); /* point to logical device */
outportb(0x2e+1, 0x07); /* select logical device 7 */
outportb(0x2e, 0xf5); /* select offset f5h */
outportb(0x2e+1, 0x40); /* set bit5 = 1 to clear bit5 */
outportb(0x2e, 0xf0); /* select offset f0h */
outportb(0x2e+1, 0x81); /* set bit7 =1 to enable WDTRST# */
outportb(0x2e, 0xf6); /* select offset f6h */
outportb(0x2e+1, 0x05); /* update offset f6h to 0ah :10sec */
outportb(0x2e, 0xF5); /* select offset f5h */
outportb(0x2e+1, 0x20); /* set bit5 = 1 enable watch dog time */
outportb(0x2e, 0xAA); /* stop program F71869E, Exit */