C8051F366-GQ Silicon Laboratories Inc, C8051F366-GQ Datasheet - Page 274
![IC 8051 MCU 32K FLASH 32-LQFP](/photos/28/60/286097/c8051f366-gq_sml.jpg)
C8051F366-GQ
Manufacturer Part Number
C8051F366-GQ
Description
IC 8051 MCU 32K FLASH 32-LQFP
Manufacturer
Silicon Laboratories Inc
Series
C8051F36xr
Specifications of C8051F366-GQ
Program Memory Type
FLASH
Program Memory Size
32KB (32K x 8)
Package / Case
32-LQFP
Core Processor
8051
Core Size
8-Bit
Speed
50MHz
Connectivity
SMBus (2-Wire/I²C), SPI, UART/USART
Peripherals
POR, PWM, Temp Sensor, WDT
Number Of I /o
29
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 21x10b; D/A 1x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
C8051F3x
Core
8051
Data Bus Width
8 bit
Data Ram Size
1 KB
Interface Type
I2C/SMBus/SPI/UART
Maximum Clock Frequency
50 MHz
Number Of Programmable I/os
29
Number Of Timers
4
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
KSK-SL-TOOLSTICK, PK51, CA51, A51, ULINK2
Development Tools By Supplier
C8051F360DK
Minimum Operating Temperature
- 40 C
On-chip Adc
21-ch x 10-bit
On-chip Dac
1-ch x 10-bit
Package
32LQFP
Device Core
8051
Family Name
C8051F36x
Maximum Speed
50 MHz
Operating Supply Voltage
3 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
770-1006 - ISP 4PORT FOR SILABS C8051F MCU336-1410 - KIT DEV FOR C8051F360 FAMILY
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1648
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
C8051F366-GQ
Manufacturer:
Silicon Laboratories Inc
Quantity:
10 000
Company:
Part Number:
C8051F366-GQR
Manufacturer:
Silicon Laboratories Inc
Quantity:
10 000
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C8051F360/1/2/3/4/5/6/7/8/9
Note that the 8-bit offset held in PCA0CPH5 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 offset is then given (in PCA clocks) by Equation 22.4, where PCA0L is the value of the PCA0L register
at the time of the update.
The WDT reset is generated when PCA0L overflows while there is a match between PCA0CPH5 and
PCA0H. Software may force a WDT reset by writing a ‘1’ to the CCF5 flag (PCA0CN.5) while the WDT is
enabled.
22.3.2. Watchdog Timer Usage
To configure the WDT, perform the following tasks:
•
•
•
•
•
•
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 PCA0CPL5 defaults to 0x00. Using Equation 22.4, this results in a WDT
timeout interval of 3072 system clock cycles. Table 22.3 lists some example timeout intervals for typical
system clocks.
274
Disable the WDT by writing a ‘0’ to the WDTE bit.
Select the desired PCA clock source (with the CPS2-CPS0 bits).
Load PCA0CPL5 with the desired WDT update offset value.
Configure the PCA Idle mode (set CIDL if the WDT should be suspended while the CPU is in Idle
mode).
Enable the WDT by setting the WDTE bit to ‘1’.
Write a value to PCA0CPH5 to reload the WDT.
Equation 22.4. Watchdog Timer Offset in PCA Clocks
Offset
=
(
256 PCA0CPL5
×
Rev. 1.0
)
+
(
256 PCA0L
–
)
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