ATMEGA644PV ATMEL [ATMEL Corporation], ATMEGA644PV Datasheet - Page 315

• Manufacturer Part Number: ATMEGA644PV
• Description: 8-bit Microcontroller with 16/32/64K Bytes In-System Programmable Flash
• Manufacturer: ATMEL [ATMEL Corporation]

Table 25-18. JTAG Programming Instruction
8011D–AVR–02/07
Instruction
1a. Chip Erase
1b. Poll for Chip Erase Complete
2a. Enter Flash Write
2b. Load Address Extended High Byte
2c. Load Address High Byte
2d. Load Address Low Byte
2e. Load Data Low Byte
2f. Load Data High Byte
2g. Latch Data
2h. Write Flash Page
2i. Poll for Page Write Complete
3a. Enter Flash Read
3b. Load Address Extended High Byte
3c. Load Address High Byte
3d. Load Address Low Byte
3e. Read Data Low and High Byte
4a. Enter EEPROM Write
4b. Load Address High Byte
4c. Load Address Low Byte
4d. Load Data Byte
4e. Latch Data
4f. Write EEPROM Page
4g. Poll for Page Write Complete
Set
i = data in, x = don’t care
a = address high bits, b = address low bits, c = address extended bits, H = 0 - Low byte, 1 - High Byte, o = data out,
TDI Sequence
0100011_10000000
0110001_10000000
0110011_10000000
0110011_10000000
0100011_00010000
0000111_aaaaaaaa
0000011_bbbbbbbb
0010011_iiiiiiii
0010111_iiiiiiii
0110111_00000000
1110111_00000000
0110111_00000000
0110111_00000000
0110101_00000000
0110111_00000000
0110111_00000000
0100011_00000010
0000111_aaaaaaaa
0000011_bbbbbbbb
0110010_00000000
0110110_00000000
0110111_00000000
0100011_00010001
0000111_aaaaaaaa
0000011_bbbbbbbb
0110111_00000000
1110111_00000000
0110111_00000000
0110011_00000000
0110001_00000000
0110011_00000000
0110011_00000000
0110011_10000000
0001011_cccccccc
0110111_00000000
0001011_cccccccc
0010011_iiiiiiii
0110011_00000000
ATmega164P/324P/644P
TDO Sequence
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_oooooooo
xxxxxxx_oooooooo
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxox_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxox_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxox_xxxxxxxx
Notes
(2)
(10)
(1)
(1)
(2)
(10)
Low byte
High byte
(10)
(1)
(1)
(2)
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