MCP795B10 MAS [Micro Analog systems], MCP795B10 Datasheet - Page 16
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MCP795B10
Manufacturer Part Number
MCP795B10
Description
SPI Real-Time Clock Calendar
Manufacturer
MAS [Micro Analog systems]
Datasheet
1.MCP795B10.pdf
(54 pages)
- Current page: 16 of 54
- Download datasheet (970Kb)
MCP795WXX/MCP795BXX
REGISTER 5-11:
DS22280A-page 16
bit 7
Legend: R = Readable Bit W = Writable Bit U = Unimplemented bit, Read as ‘0’
Note:
bit 3:0
WDTEN
bit 7
bit 6
bit 5
bit 4
RW
Bit 7 is a read/write bit that is set by the user and can be cleared by the user of the hardware. This bit is
set to enable the WDT function and cleared to disable the function. This bit is cleared by the hardware
when the V
Bit 6 is a read/write bit that is set in hardware when the WDT times out and the WD pin is asserted. This
bit must be cleared in software to restart the WDT.
Bit 5 is a read/write bit and is set to enable a 64-second delay before the WDT starts to count. If this bit is
set and the WDTIF bit is cleared then there will be a 64 second delay before the WDT starts to count. This
bit should be set before the WDTEN bit is set.
Bit 4 is a read/write bit that is used to select the pulse width on the WD pin when the WDT times out.
- 0 – 122 us Pulse
- 1 – 125 ms Pulse
Bits <3:0> are read/write bits that are used to set the WDT time-out period as below (all times are based
off the uncalibrated crystal reference). Bit 3 should be cleared and is reserved for future use:
- 000 – 977 us
- 001 – 15.6 ms
- 010 – 62.5 ms
- 011 – 125 ms
- 100 – 1s
- 101 – 16s
- 110 – 32s
- 111 – 64s
Please see
bit 6
WDTIF
RW
WATCHDOG 0
CC
Section 9.1.3, Watchdog Timer
supply is not present, it is not set again when V
bit 5
WDDEL
RW
X
0A
bit 4
WDTPLS
RW
Preliminary
for more information.
bit 3
WD3
RW
CC
bit 2
is present.
WD2
RW
2011 Microchip Technology Inc.
bit 1
WD1
RW
bit 0
WD0
RW
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