AT90PWM316 Atmel Corporation, AT90PWM316 Datasheet - Page 48

• Manufacturer Part Number: AT90PWM316
• Manufacturer: Atmel Corporation

Specifications of AT90PWM316

• Flash (kbytes): 16 Kbytes
• Pin Count: 32
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 12
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 27
• Ext Interrupts: 4
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Uart: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 11
• Adc Resolution (bits): 10
• Adc Speed (ksps): 125
• Analog Comparators: 3
• Resistive Touch Screen: No
• Dac Channels: 1
• Dac Resolution (bits): 10
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 1
• Eeprom (bytes): 512
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 105
• I/o Supply Class: 2.7 to 5.5
• Operating Voltage (vcc): 2.7 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 5
• Output Compare Channels: 16
• Input Capture Channels: 1
• Pwm Channels: 12
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

9.6
9.7
7710F–AVR–09/11
Watchdog Reset
MCU Status Register – MCUSR
When the BOD is enabled, and V
9-5), the Brown-out Reset is immediately activated. When V
(V
expired.
The BOD circuit will only detect a drop in V
ger than t
Figure 9-5.
When the Watchdog times out, it will generate a short reset pulse of one CK cycle duration. On
the falling edge of this pulse, the delay timer starts counting the Time-out period t
page 50
Figure 9-6.
The MCU Status Register provides information on which reset source caused an MCU reset.
Bit
Read/Write
Initial Value
BOT+
in
for details on operation of the Watchdog Timer.
BOD
Figure
given in
Brown-out Reset During Operation
Watchdog Reset During Operation
CC
INTERNAL
TIME-OUT
9-5), the delay counter starts the MCU after the Time-out period t
R
7
–
0
RESET
RESET
V
Table
CC
R
6
–
0
9-3.
CC
R
5
–
0
decreases to a value below the trigger level (V
V
CK
BOT-
CC
R
4
–
0
if the voltage stays below the trigger level for lon-
WDRF
R/W
3
CC
AT90PWM216/316
BORF
R/W
increases above the trigger level
2
See Bit Description
V
t
TOUT
BOT+
EXTRF
R/W
1
PORF
R/W
0
TOUT
BOT-
. Refer to
TOUT
in
MCUSR
Figure
has
48