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| PRELIMINARY |
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| CY14B101P | |||||
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Table 10. Register Map Detail |
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| Time Keeping - Years |
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0x0F | D7 |
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| D6 |
| D5 | D4 |
| D3 | D2 |
| D1 |
| D0 | |
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| 10s | Years |
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| Years |
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| 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 | |||||||||||||||
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| Time Keeping - Months |
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0x0E | D7 |
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| D6 |
| D5 | D4 |
| D3 | D2 |
| D1 |
| D0 | |
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0 |
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| 0 | 10s Month |
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| Months |
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| 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 |
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| Time Keeping - Date |
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| D7 |
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| D6 |
| D5 | D4 |
| D3 | D2 |
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| D0 | |
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0x0D | 0 |
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| 10s Day | of Month |
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| Day of Month |
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| 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 | |||||||||||||||
| years are automatically adjusted for. |
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| Time Keeping - Day |
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| D7 |
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| D6 |
| D5 | D4 |
| D3 | D2 |
| D1 |
| D0 | |
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0x0C | 0 |
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| 0 | 0 |
| 0 |
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| Day of Week |
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| 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. |
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| Time Keeping - Hours |
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0x0B | D7 |
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| D5 | D4 |
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| D0 | |
0 |
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| 10s | Hours |
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| Hours |
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| 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 | |||||||||||||||
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| Time Keeping - Minutes |
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0x0A | D7 |
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| D5 | D4 |
| D3 | D2 |
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| D0 | |
0 |
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| 10s Minutes |
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| Minutes |
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| 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 | |||||||||||||||
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| Time Keeping - Seconds |
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0x09 | D7 |
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| D5 | D4 |
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| 10s | Seconds |
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| Seconds |
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| 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 |
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| Calibration/Control |
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0X08 | D7 |
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| D5 | D4 |
| D3 | D2 |
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| OSCEN |
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| Calibration |
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| Calibration |
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| Sign |
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OSCEN | Oscillator Enable. When set to 1, the oscillator is stopped. When set to 0, the oscillator runs. Disabling the oscillator | |||||||||||||||
| saves battery or capacitor power during storage. |
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Calibration | Determines if the calibration adjustment is applied as an addition (1) to or as a subtraction (0) from the | |||||||||||||||
Sign |
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Calibration | These five bits control the calibration of the clock. |
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Document #: |
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| Page 19 of 32 | |||||
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