DOC7707 datasheet(58/307 Pages) ETC1

Part #	DOC7707

Description	Microcontroller with 8/16K Bytes of ISP Flash and USB Controller

PDF	307 Pages

Scroll/Zoom	100%

Manufacturer	ETC1 [List of Unclassifed Manufacturers]

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7707F–AVR–11/10

AT90USB82/162

• Bit 7-4 - Reserved bits

These bits are reserved and will always read as zero.

• Bit 3 - WDEWIF: Watchdog Early Warning Interrupt Flag

This bit is set when a first time-out occurs in the Watchdog Timer and if the WDEWIE bit is

enabled. WDEWIF is automatically cleared by hardware when executing the corresponding

interrupt handling vector. Alternatively, WDIF can be cleared by writing a logic one to the flag.

When the I-bit in SREG and WDEWIE are set, the Watchdog Time-out Interrupt is executed.

• Bit 2 - WDEWIE: Watchdog Early Warning Interrupt Enable

When this bit has been set by software, an interrupt will be generated on the watchdog interrupt

vector when the Early warning flag is set to one by hardware.

• Bit 1:0 - WCLKD[1:0]: Watchdog Timer Clock Divider

– WCLKD = 0 : Clk

WDT = Clk128k

– WCLKD = 1 : Clk

WDT = Clk128k / 3

– WCLKD = 2 : Clk

WDT = Clk128k / 5

– WCLKD = 3 : Clk

WDT = Clk128k / 7

DOC7707 Datasheet(PDF) 58 Page - List of Unclassifed Manufacturers