CY14B104KA Просмотр технического описания (PDF) - Cypress Semiconductor
Номер в каталоге
Компоненты Описание
производитель
CY14B104KA Datasheet PDF : 31 Pages
| |||
PRELIMINARY
CY14B104KA, CY14B104MA
Table 4. Register Map Detail
Register
CY14B104KA CY14B104MA
Description
Time Keeping - Years
0x7FFFF
0x3FFFF
D7
D6
D5
D4
D3
D2
D1
D0
10s Years
Years
Contains the lower two BCD digits of the year. Lower nibble (four bits) contains the value for years;
upper nibble (four bits) contains the value for 10s of years. Each nibble operates from 0 to 9. The
range for the register is 0–99.
Time Keeping - Months
0x7FFFE
0x3FFFE
D7
D6
D5
D4
D3
D2
D1
D0
0x7FFFD
0x7FFFC
0x7FFFB
0x7FFFA
0x7FFF9
0x3FFFD
0x3FFFC
0x3FFFB
0x3FFFA
0x3FFF9
0
0
0
10s Month
Months
Contains the BCD digits of the month. Lower nibble (four bits) contains the lower digit and operates
from 0 to 9; upper nibble (one bit) contains the upper digit and operates from 0 to 1. The range
for the register is 1–12.
Time Keeping - Date
D7
D6
D5
D4
D3
D2
D1
D0
0
0
10s Day of Month
Day of Month
Contains the BCD digits for the date of the month. Lower nibble (four bits) contains the lower digit
and operates from 0 to 9; upper nibble (two bits) contains the 10s digit and operates from 0 to 3.
The range for the register is 1–31. Leap years are automatically adjusted for.
Time Keeping - Day
D7
D6
D5
D4
D3
D2
D1
D0
0
0
0
0
0
Day of Week
Lower nibble (three bits) contains a value that correlates to day of the week. Day of the week is a
ring counter that counts from 1 to 7 then returns to 1. The user must assign meaning to the day
value, because the day is not integrated with the date.
Time Keeping - Hours
D7
D6
D5
D4
D3
D2
D1
D0
0
0
10s Hours
Hours
Contains the BCD value of hours in 24 hour format. Lower nibble (four bits) contains the lower
digit and operates from 0 to 9; upper nibble (two bits) contains the upper digit and operates from
0 to 2. The range for the register is 0–23.
Time Keeping - Minutes
D7
D6
D5
D4
D3
D2
D1
D0
0
10s Minutes
Minutes
Contains the BCD value of minutes. Lower nibble (four bits) contains the lower digit and operates
from 0 to 9; upper nibble (three bits) contains the upper minutes digit and operates from 0 to 5.
The range for the register is 0–59.
Time Keeping - Seconds
D7
D6
D5
D4
D3
D2
D1
D0
0
10s Seconds
Seconds
Contains the BCD value of seconds. Lower nibble (four bits) contains the lower digit and operates
from 0 to 9; upper nibble (three bits) contains the upper digit and operates from 0 to 5. The range
for the register is 0–59.
Document #: 001-07103 Rev. *J
Page 11 of 31
[+] Feedback
Share Link: 