Microchip Technology MCU PIC10F322T-I/OT SOT-23-6 MCP PIC10F322T-I/OT データシート
製品コード
PIC10F322T-I/OT
2011 Microchip Technology Inc.
Preliminary
DS41585A-page 55
PIC10(L)F320/322
8.6
Watchdog Control Register
REGISTER 8-1:
WDTCON: WATCHDOG TIMER CONTROL REGISTER
U-0
U-0
R/W-0/0
R/W-1/1
R/W-0/0
R/W-1/1
R/W-1/1
R/W-0/0
—
—
WDTPS<4:0>
SWDTEN
bit 7
bit 0
Legend:
R = Readable bit
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
u = Bit is unchanged
x = Bit is unknown
-n/n = Value at POR and BOR/Value at all other Resets
‘1’ = Bit is set
‘0’ = Bit is cleared
bit 7-6
Unimplemented:
Read as ‘0’
bit 5-1
WDTPS<4:0>:
Watchdog Timer Period Select bits
(1)
Bit Value = Prescale Rate
11111
= Reserved. Results in minimum interval (1:32)
•
•
•
•
•
10011
= Reserved. Results in minimum interval (1:32)
10010
= 1:8388608 (2
23
) (Interval 256s nominal)
10001
= 1:4194304 (2
22
) (Interval 128s nominal)
10000
= 1:2097152 (2
21
) (Interval 64s nominal)
01111
= 1:1048576 (2
20
) (Interval 32s nominal)
01110
= 1:524288 (2
19
) (Interval 16s nominal)
01101
= 1:262144 (2
18
) (Interval 8s nominal)
01100
= 1:131072 (2
17
) (Interval 4s nominal)
01011
= 1:65536 (Interval 2s nominal) (Reset value)
01010
= 1:32768 (Interval 1s nominal)
01001
= 1:16384 (Interval 512 ms nominal)
01000
= 1:8192 (Interval 256 ms nominal)
00111
= 1:4096 (Interval 128 ms nominal)
00110
= 1:2048 (Interval 64 ms nominal)
00101
= 1:1024 (Interval 32 ms nominal)
00100
= 1:512 (Interval 16 ms nominal)
00011
= 1:256 (Interval 8 ms nominal)
00010
= 1:128 (Interval 4 ms nominal)
00001
= 1:64 (Interval 2 ms nominal)
00000
= 1:32 (Interval 1 ms nominal)
bit 0
SWDTEN:
Software Enable/Disable for Watchdog Timer bit
If WDTE<1:0> = 00:
This bit is ignored.
If WDTE<1:0> = 01:
1
This bit is ignored.
If WDTE<1:0> = 01:
1
= WDT is turned on
0
= WDT is turned off
If WDTE<1:0> = 1x:
This bit is ignored.
This bit is ignored.
Note 1:
Times are approximate. WDT time is based on 31 kHz LFINTOSC.