Motorola MC68VZ328 - Manual (Page 218)

11-8 MC68VZ328 User’s Manual
Programming Model
11.2.4 RTC Day Alarm Register
The real-time clock day alarm (DAYALRM) register contains the numerical value of the day that
generates the alarm. It can be read or written at any time. After a write, the current time assumes the new
values. The settings for the DAYALRM register are described in Table 11-5.
DAYALRM RTC Day Alarm Register 0x(ff)FFFB1C
BIT
15
14 13 12 11 10 9 8 7 6 5 4 3 2 1
BIT
0
DAYSAL
TYPE rw rw rw rw rw rw rw rw rw
RESET
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0x0000
Table 11-5. RTC Day Alarm Register Description
Name Description Setting
Reserved
Bits 15–9 Reserved These bits are reserved and should be set
to 0.
DAYSAL
Bits 8–0 Days Alarm—This field indicates the numerical
setting of the day that will enable the alarm. The bits can be set to any value between
0 and 511.