ATMEGA169 ATMEL [ATMEL Corporation], ATMEGA169 Datasheet - Page 272

• Manufacturer Part Number: ATMEGA169
• Description: 8-bit Microcontroller with 16K Bytes In-System Programmable Flash
• Manufacturer: ATMEL [ATMEL Corporation]

Serial Programming Pin
Mapping
272
ATmega169/V
Table 126. Command Byte Bit Coding
Table 127. Pin Mapping Serial Programming
Command Byte
Symbol
1000 0000
0100 0000
0010 0000
0001 0000
0001 0001
0000 1000
0000 0100
0000 0010
0000 0011
MOSI
MISO
SCK
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
Read EEPROM
Pins
PB2
PB3
PB1
I/O
O
I
I
Serial Data out
Serial Data in
Description
Serial Clock
2514P–AVR–07/06