MCP795W10-I/SL Microchip Technology, MCP795W10-I/SL Datasheet - Page 22

• Manufacturer Part Number: MCP795W10-I/SL
• Description: SPI GPP RTCC, 1Kb EE, 64B SRAM, WD Timer, Event Detect, ID 14 SOIC .150in TUBE
• Manufacturer: Microchip Technology

MCP795WXX/MCP795BXX
REGISTER 7-4:
REGISTER 7-5:
DS22280B-page 22
bit 7
Legend:
R = Readable bit
bit 7
bit 6
bit 5
bit 4
bit 3-0
bit 7
Legend:
R = Readable bit
bit 7
bit 6-4
bit 3
bit 2-0
ALM1PIN
R/W
U-0
—
bit 6
Unimplemented: Read as ‘0’
12/24
10 HOUR AM/PM
10 HOUR
HOUR<3:0>
bit 6
ALM1PIN: Alarm 1 Output Pin Configuration bit
This pin configures the pin that is used for the Alarm 1 output. If this bit is clear the IRQ pin is used. If
set, the WDO pin is used. If the WDT is enabled then a valid Alarm will assert the WDO pin for 122
us.
ALM1C<2:0>: Alarm 1 Configuration bits
Sets the condition on what the Alarm will trigger. The following options are available:
ALM1IF: Alarm 1 Interrupt Flag bit
This bit is set by hardware when an alarm condition has been generated. The bit must be cleared in
software.
DAY<2:0>
ALM1C2
- 000 – Seconds match
- 001 – Minutes match
- 010 – Hours match (logic takes into account 12/24 operation)
- 011 – Day match. Generates interrupt at 12:00:00 AM
- 100 – Date match
- 101 – Unimplemented, do not use
- 110 – Unimplemented, do not use
- 111 – Seconds, Minutes, Hour, Day, Date and Month
12/24
HOURS 0
DAY 0
X
bit 5
W = Writable bit
16
bit 5
W = Writable bit
ALM1C1
X
10 Hour
AM/PM
15
R/W
R/W
bit 4
ALM1C0
10 Hour
Preliminary
bit 4 bit 3
U = Unimplemented bit, read as ‘0’
bit 3
U = Unimplemented bit, read as ‘0’
ALM1IF
R/W
bit 2
 2011-2012 Microchip Technology Inc.
Hour
R/W
R/W
Day
bit 0
bit 0