Datasheet

1. Step A: Load Command “0001 0001”.
2. Step G: Load Address High Byte (0x00 - 0xFF).
3. Step B: Load Address Low Byte (0x00 - 0xFF).
4. Step C: Load Data (0x00 - 0xFF).
5. Step E: Latch data (give PAGEL a positive pulse).
6. Step K:Repeat 3 through 5 until the entire buffer is filled.
7. Step L: Program EEPROM page
7.1. Set BS1 to “0”.
7.2. Give WR a negative pulse. This starts programming of the EEPROM page. RDY/BSY goes
low.
7.3. Wait until to RDY/BSY goes high before programming the next page (Please refer to the
following figure for signal waveforms).
Figure 28-3. Programming the EEPROM Waveforms
RDY/BSY
WR
OE
RESET +12V
PAGEL
BS2
0x11 ADDR. HIGH
DATA
ADDR. LOW DATA ADDR. LOW DATA XX
XA1
XA0
BS1
XTAL1
XX
A G B C E B C E L
K
28.8.6. Reading the Flash
The algorithm for reading the Flash memory is as follows (Please refer to Programming the Flash in this
chapter for details on Command and Address loading):
1. Step A: Load Command “0000 0010”.
2. Step G: Load Address High Byte (0x00 - 0xFF).
3. Step B: Load Address Low Byte (0x00 - 0xFF).
4. Set OE to “0”, and BS1 to “0”. The Flash word low byte can now be read at DATA.
5. Set BS1 to “1”. The Flash word high byte can now be read at DATA.
6. Set OE to “1”.
28.8.7. Reading the EEPROM
The algorithm for reading the EEPROM memory is as follows (Please refer to Programming the Flash for
details on Command and Address loading):
1. Step A: Load Command “0000 0011”.
2. Step G: Load Address High Byte (0x00 - 0xFF).
3. Step B: Load Address Low Byte (0x00 - 0xFF).
Atmel ATmega16M1/32M1/64M1 [DATASHEET]
Atmel-8209F-ATmega16M1/32M1/64M1_Datasheet_Complete-10/2016
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