atmega32u4-16mu ATMEL Corporation, atmega32u4-16mu Datasheet - Page 370
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atmega32u4-16mu
Manufacturer Part Number
atmega32u4-16mu
Description
Atmega32u4 8-bit Avr Microcontroller With 32k Bytes Of Isp Flash And Usb Controller
Manufacturer
ATMEL Corporation
Datasheet
1.ATMEGA32U4-16MU.pdf
(431 pages)
- Current page: 370 of 431
- Download datasheet (6Mb)
370
ATmega32U4
,
Table 29-8.
Table 29-9.
Table 29-10. Command Byte Bit Encoding
Table 29-11. No. of Words in a Page and No. of Pages in the Flash
16K words (32K bytes)
XA1
Command Byte
0
0
1
1
Flash Size
1000 0000
0100 0000
0010 0000
0001 0000
0001 0001
0000 1000
0000 0100
0000 0010
0000 0011
PAGEL
XA1
XA0
BS1
Pin
Pin Values Used to Enter Programming Mode
XA1 and XA0 Enoding
XA0
0
1
0
1
Read EEPROM
Action when XTAL1 is Pulsed
Load Flash or EEPROM Address (High or low address byte
determined by BS2 and BS1).
Load Data (High or Low data byte for Flash determined by BS1).
Load Command
No Action, Idle
Command Executed
Chip Erase
Write Fuse bits
Write Lock bits
Write Flash
Write EEPROM
Read Signature Bytes and Calibration byte
Read Fuse and Lock bits
Read Flash
Page Size
128 words
Prog_enable[3]
Prog_enable[2]
Prog_enable[1]
Prog_enable[0]
PCWORD
Symbol
PC[6:0]
Pages
No. of
128
PCPAGE
PC[13:7]
Value
0
0
0
0
PCMSB
13
7766A–AVR–03/08
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