C8051T606DK Silicon Laboratories Inc, C8051T606DK Datasheet - Page 171
C8051T606DK
Manufacturer Part Number
C8051T606DK
Description
KIT DEVELOPMENT FOR C8051T606
Manufacturer
Silicon Laboratories Inc
Type
MCUr
Datasheets
1.C8051T600EDB.pdf
(188 pages)
2.C8051T606TDB.pdf
(1 pages)
3.C8051T606DK.pdf
(16 pages)
4.C8051T606TDB.pdf
(14 pages)
Specifications of C8051T606DK
Contents
Board, Adapter, Cable, CD, Power Supply
Processor To Be Evaluated
C8051T606x
Interface Type
RS-232, USB
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Operating Supply Voltage
3.3 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With/related Products
C8051T606
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1666
- C8051T600EDB PDF datasheet
- C8051T606TDB PDF datasheet #2
- C8051T606DK PDF datasheet #3
- C8051T606TDB PDF datasheet #4
- Current page: 171 of 188
- Download datasheet (898Kb)
C8051T600/1/2/3/4/5/6
The 8-bit offset held in PCA0CPH2 is compared to the upper byte of the 16-bit PCA counter. This offset
value is the number of PCA0L overflows before a reset. Up to 256 PCA clocks may pass before the first
PCA0L overflow occurs, depending on the value of the PCA0L when the update is performed. The total off-
set is then given (in PCA clocks) by Equation 26.4, where PCA0L is the value of the PCA0L register at the
time of the update.
Offset
=
256 PCA0CPL2
+
256 PCA0L
–
Equation 26.4. Watchdog Timer Offset in PCA Clocks
The WDT reset is generated when PCA0L overflows while there is a match between PCA0CPH2 and
PCA0H. Software may force a WDT reset by writing a 1 to the CCF2 flag (PCA0CN.2) while the WDT is
enabled.
26.4.2. Watchdog Timer Usage
To configure the WDT, perform the following tasks:
1. Disable the WDT by writing a 0 to the WDTE bit.
2. Select the desired PCA clock source (with the CPS2–CPS0 bits).
3. Load PCA0CPL2 with the desired WDT update offset value.
4. Configure the PCA Idle Mode (set CIDL if the WDT should be suspended while the CPU is in Idle
Mode).
5. Enable the WDT by setting the WDTE bit to 1.
6. Reset the WDT timer by writing to PCA0CPH2.
The PCA clock source and Idle Mode select cannot be changed while the WDT is enabled. The Watchdog
Timer is enabled by setting the WDTE or WDLCK bits in the PCA0MD register. When WDLCK is set, the
WDT cannot be disabled until the next system reset. If WDLCK is not set, the WDT is disabled by clearing
the WDTE bit.
The WDT is enabled following any reset. The PCA0 counter clock defaults to the system clock divided by
12, PCA0L defaults to 0x00, and PCA0CPL2 defaults to 0x00. Using Equation 26.4, this results in a WDT
timeout interval of 256 PCA clock cycles, or 3072 system clock cycles. Table 26.3 lists some example tim-
eout intervals for typical system clocks.
Rev. 1.2
171
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