C8051F020-TB Silicon Laboratories Inc, C8051F020-TB Datasheet - Page 131
C8051F020-TB
Manufacturer Part Number
C8051F020-TB
Description
BOARD PROTOTYPING W/C8051F020
Manufacturer
Silicon Laboratories Inc
Type
MCUr
Specifications of C8051F020-TB
Contents
Board
Processor To Be Evaluated
C8051F02x
Interface Type
USB
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
For Use With/related Products
C8051F020
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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Bits7-0:
Bit4:
Bits2-0:
R/W
Bit7
WDT Control
Writing 0xA5 both enables and reloads the WDT.
Writing 0xDE followed within 4 system clocks by 0xAD disables the WDT.
Writing 0xFF locks out the disable feature.
Watchdog Status Bit (when Read)
Reading the WDTCN.[4] bit indicates the Watchdog Timer Status.
0: WDT is inactive
1: WDT is active
Watchdog Timeout Interval Bits
The WDTCN.[2:0] bits set the Watchdog Timeout Interval. When writing these bits, WDTCN.7 must
be set to 0.
R/W
Bit6
Figure 13.3. WDTCN: Watchdog Timer Control Register
R/W
Bit5
R/W
Bit4
R/W
Bit3
Rev. 1.4
R/W
Bit2
C8051F020/1/2/3
R/W
Bit1
R/W
Bit0
SFR Address:
xxxxx111
Reset Value
0xFF
131
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