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ATTINY817-MFR. Datasheet(PDF) 64 Page - Microchip Technology

Part # ATTINY817-MFR.
Description  AVR짰 Microcontroller with Core Independent Peripherals and picoPower짰 Technology
PDF  492 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

ATTINY817-MFR. Datasheet(HTML) 64 Page - Microchip Technology

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10.4
Register Summary - CLKCTRL
Offset
Name
Bit Pos.
0x00
MCLKCTRLA
7:0
CLKOUT
CLKSEL[1:0]
0x01
MCLKCTRLB
7:0
PDIV[3:0]
PEN
0x02
MCLKLOCK
7:0
LOCKEN
0x03
MCLKSTATUS
7:0
EXTS
XOSC32KS
OSC32KS
OSC20MS
SOSC
0x04
...
0x0F
Reserved
0x10
OSC20MCTRLA
7:0
RUNSTDBY
0x11
OSC20MCALIBA
7:0
CAL20M[5:0]
0x12
OSC20MCALIBB
7:0
LOCK
TEMPCAL20M[3:0]
0x13
...
0x17
Reserved
0x18
OSC32KCTRLA
7:0
RUNSTDBY
0x19
...
0x1B
Reserved
0x1C
XOSC32KCTRLA
7:0
CSUT[1:0]
SEL
RUNSTDBY
ENABLE
10.5
Register Description
10.5.1
Main Clock Control A
Name: 
MCLKCTRLA
Offset:  0x00
Reset: 
0x00
Property:
 
Configuration Change Protection
Bit
7
6
5
4
3
2
1
0
CLKOUT
CLKSEL[1:0]
Access
R/W
R
R
R
R
R
R/W
R/W
Reset
0
0
0
0
0
0
0
0
Bit 7 – CLKOUT: System Clock Out
When this bit is written to '1', the system clock is output to CLKOUT pin.
When the device is in a sleep mode, there is no clock output unless a peripheral is using the system
clock.
Bits 1:0 – CLKSEL[1:0]: Clock Select
This bit field selects the source for the Main Clock (CLK_MAIN).
ATtiny417/817
© 2017 Microchip Technology Inc.
Datasheet Complete
DS40001901B-page 64



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