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ATTINY817-MFR. Datasheet(PDF) 53 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) 53 Page - Microchip Technology

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9.4
Register Summary - NVMCTRL
Offset
Name
Bit Pos.
0x00
CTRLA
7:0
CMD[2:0]
0x01
CTRLB
7:0
BOOTLOCK
APCWP
0x02
STATUS
7:0
WRERROR
EEBUSY
FBUSY
0x03
INTCTRL
7:0
EEREADY
0x04
INTFLAGS
7:0
EEREADY
0x05
Reserved
0x06
DATA
7:0
DATA[7:0]
0x07
15:8
DATA[15:8]
0x08
ADDR
7:0
ADDR[7:0]
0x09
15:8
ADDR[15:8]
9.5
Register Description
9.5.1
Control A
Name: 
CTRLA
Offset:  0x00
Reset: 
0x00
Property:
 
Configuration Change Protection
Bit
7
6
5
4
3
2
1
0
CMD[2:0]
Access
R/W
R/W
R/W
Reset
0
0
0
Bits 2:0 – CMD[2:0]: Command
Write this bit field to issue a command. The Configuration Change Protection key for self-programming
(SPM) has to be written within four instructions before this write.
Value
Name Description
0x0
-
No command
0x1
WP
Write page buffer to memory (NVMCTRL.ADDR selects which memory)
0x2
ER
Erase page (NVMCTRL.ADDR selects which memory)
0x3
ERWP Erase and write page (NVMCTRL.ADDR selects which memory)
0x4
PBC
Page buffer clear
0x5
CHER Chip erase: erase Flash and EEPROM (unless EESAVE in FUSE.SYSCFG is '1')
0x6
EEER EEPROM Erase
0x7
WFU
Write fuse (only accessible through UPDI)
9.5.2
Control B
ATtiny417/817
© 2017 Microchip Technology Inc.
Datasheet Complete
DS40001901B-page 53



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