CY14B101K-SP25XCT CYPRESS [Cypress Semiconductor], CY14B101K-SP25XCT Datasheet - Page 12

• Manufacturer Part Number: CY14B101K-SP25XCT
• Description: 1 Mbit (128K x 8) nvSRAM With Real Time Clock
• Manufacturer: CYPRESS [Cypress Semiconductor]

Table 4. Register Map Detail (continued)
Document Number: 001-06401 Rev. *G
0x1FFF6
0x1FFF5
0x1FFF4
0x1FFF3
0x1FFF2
0x1FFF1
PFIE
WIE
AIE
H/L
P/L
M
M
M
M
0
Watchdog Interrupt Enable. When set to 1 and a watchdog timeout occurs, the watchdog timer drives the INT pin
and the WDF flag. When set to 0, the watchdog timeout affects only the WDF flag.
Alarm Interrupt Enable. When set to 1, the alarm match drives the INT pin and the AF flag. When set to 0, the alarm
match only affects the AF flag.
Power Fail Enable. When set to 1, the alarm match drives the INT pin and the AF flag. When set to 0, the power fail
monitor affects only the PF flag.
Reserved for future use.
High/Low. When set to a 1, the INT pin is driven active high. When set to 0, the INT pin is open drain, active LOW.
Pulse/Level. When set to a 1, the INT pin is driven active (determined by H/L) by an interrupt source for approximately
200 ms. When set to a 0, the INT pin is driven to an active level (as set by H/L) until the Flags/Control register is READ.
Contains the alarm value for the date of the month and the mask bit to select or deselect the date value.
Match. Setting this bit to 0 causes the date value to use the alarm match. Setting this bit to 1 causes the match circuit
to ignore the date value.
Contains the alarm value for the hours and the mask bit to select or deselect the hours value.
Match. Setting this bit to 0 causes the hours value to use the alarm match. Setting this bit to 1 causes the match
circuit to ignore the hour value.
Contains the alarm value for the minutes and the mask bit to select or deselect the minutes value.
Match. Setting this bit to 0 causes the minutes value to use the alarm match. Setting this bit to 1 causes the match
circuit to ignore the minute value.
Contains the alarm value for the seconds and the mask bit to select or deselect the second value.
Match. Setting this bit to 0 causes the second value to use the alarm match. Setting this bit to 1 causes the match
circuit to ignore the second value.
WIE
D7
D7
D7
D7
D7
D7
M
M
M
M
0
AIE
D6
D6
D6
D6
D6
D6
0
0
0
0
0
PFIE
10s Alarm Seconds
10s Alarm Minutes
D5
D5
D5
D5
D5
D5
10s Alarm Hours
10s Alarm Date
10s Centuries
Time Keeping – Centuries
Interrupt Status/Control
Alarm – Seconds
Alarm – Minutes
D4
D4
D4
D4
D4
D4
Alarm – Hours
0
Alarm – Day
H/L
D3
D3
D3
D3
D3
D3
P/L
D2
D2
D2
D2
D2
D2
Alarm Seconds
Alarm Minutes
Alarm Hours
Alarm Date
Centuries
D1
D1
D1
D1
D1
D1
0
CY14B101K
Page 12 of 24
D0
D0
D0
D0
D0
D0
0
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