Samsung S3C80M4/F80M4 User Manual page 210

BASIC TIMER
Watchdog timer enable bits:
1010B
Other value = Enable watchdog function
10-2
Basic TImer Control Register (BTCON)
D3H, Set 1, R/W
MSB .7 .6 .5
= Disable watchdog function
Basic timer input clock selection bits:
00 = f
01 = f
10 = f
11 = f
Figure 10-1. Basic Timer Control Register (BTCON)
.4 .3 .2 .1
Basic timer counter clear bit:
0 = No effect
1= Clear BTCNT
/4096
XX
/1024
XX
/128
XX
/16
XX
S3C80M4/F80M4
.0 LSB
Divider clear bit:
0 = No effect
1= Clear dvider