Freescale Semiconductor MPC5200B ユーザーズマニュアル
Real-Time Clock
MPC5200B Users Guide, Rev. 1
Freescale Semiconductor
7-71
7.6.3.6
RTC Current Date Register—MBAR + 0x0814
This is a read-only register.
7.6.3.7
RTC Alarm and Stopwatch Interrupt Register—MBAR + 0x0818
This is a read-only register.
24:25
—
Reserved
26:31
Second
Shows seconds in current time.
Table 7-61. RTC Current Date Register
msb 0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
R
Reserved
Month
Weekday
Day
W
RESET:
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31 lsb
R
Reserved
Year
W
RESET:
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bits
Name
Description
0:3
—
Reserved
4:7
Month
Shows current month. 1 = January; 12 = December
8:10
Weekday
Indicates day of week. (Monday = 1, Sunday = 7)
11:15
Date
Shows current date. Calendar feature is implemented, therefore, day rollover at the end of
month including February (and Leap Years) is automatic.
month including February (and Leap Years) is automatic.
16:19
—
Reserved
20:31
Year
Shows current year. Max is 4052.
Table 7-62. RTC Alarm and Stopwatch Interrupt Register
msb 0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
R
Reserved
Int_alm
Reserved
Int_SW
W
RESET:
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31 lsb
R
Reserved
Alm_st
atus
SW_min
W
RESET:
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bits
Name
Description