ATtiny43U datasheet(47/182 Pages) ATMEL

No. de pieza	ATtiny43U

Descripción Electrónicos	8-bit Microcontroller with 4K Bytes In-System Programmable Flash and Boost Converter

PDF	182 Pages

Scroll/Zoom	100%

Fabricante Electrónico	ATMEL [ATMEL Corporation]

Página de inicio	http://www.atmel.com

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47 / 182 page

8048B–AVR–03/09

boost converter, connect pins V

BAT and LSW to ground and provide the device with supply

directly to the V

CC pin.

8.11

8.11.1

ADCSRB – ADC Control and Status Register B

• Bit 7 – BS: Boost Status

The BS bit can be used to identify silent periods of the boost converter. When this bit is one the

boost converter is active and switching, i.e. it is either in Active Regulated Mode, or in the switch-

ing period of Active Low Current Mode. When this bit is zero the boost converter is not switching,

i.e. it is either in Stop Mode or in the non-switching period of Active Low Current Mode.

Alternatively, the BS bit can be programmed to return the state of the duty cycle controller, as

follows:

Write 11xx xxxx to register PRR

Within 3 clock cycles of the above, write 10xx xxxx to register PRR

Wait (issue a single-cycle no operation)

Within 5 clock cycles of first write, read the BS bit

If the BS bit now is zero the converter is operating in normal duty cycle control mode. If the bit is

one the converter is working in full duty cycle mode.

Bit

6543210

0x03 (0x23)

ACME

–

ADLAR

–

ADTS2

ADTS1

ADTS0

ADCSRB

Read/Write

R/W

Initial Value

0000000

ATtiny43U Datasheet(PDF) 47 Page - ATMEL Corporation