Toshiba TMP91C815F Data Book page 204

(3) Hour column register (for PAGE0/1)
① In case of 24-hour clock mode (MONTHR<MO0>='1') of PAGE1
7
HOURR
bit Symbol
(0322H)
Read/Write
After reset
Function
② In case of 12-hour clock mode (MONTHR<MO0>='0') of PAGE1
7
HOURR
bit Symbol
(0322H)
Read/Write
After reset
Function
6 5
HO5 HO4
20 hour 10 hour
"0" is read.
column column
0
0
0
0
0
0
0
1
1
6 5
HO5 HO4
10 hour
＿＿
"0" is read.
PM/ AM
column
0
0
0
0
0
0
1
1
91C815-
4 3 2
HO3 HO2
R/W
Undefined
8 hour 4 hour 2 hour
column column column
0 0 0
0 0 0
0 0 0
0 1 0
0 1 0
1 0 0
1 1 0
0 0 0
0 0 0
4 3 2
HO3 HO2
R/W
Undefined
8 hour 4 hour 2 hour
column column column
0 0 0
0 0 0
0 0 0
0 1 0
1 0 0
1 0 0
0 0 0
0 0 0
201
TMP91C815
1 0
HO1 HO0
1 hour
column
0 0 0 o'clock
0 1 1 o'clock
1 0 2 o'clock
0 0 8 o'clock
0 1 9 o'clock
0 0 10 o'clock
0 1 19 o'clock
0 0 20 o'clock
1 1 23 o'clock
1 0
HO1 HO0
1 hour
column
0 o'clock
0 0
(AM)
0 1 1 o'clock
1 0 2 o'clock
0 1 9 o'clock
0 0 10 o'clock
0 1 11 o'clock
0 o'clock
0 0
(PM)
0 1 1 o'clock