atmega163l ATMEL Corporation, atmega163l Datasheet - Page 148

• Manufacturer Part Number: atmega163l
• Description: Atmega163 8-bit Avr Microcontroller With 16k Bytes Of In-system Programmable Flash
• Manufacturer: ATMEL Corporation

148
ATmega163(L)
DY/BSY
H. Load Address High byte
I. Program Page
J. End Page Programming
K. Repeat A through J 128 times or until all data has been programmed.
Figure 82. Programming the Flash Waveforms
RESET
PAGEL
XTAL1
DATA
XA1
XA2
BS1
BS2
WR
OE
1. 1. Set XA1, XA0 to “00”. This enables address loading.
2. Set BS1 to “1”. This selects high address.
3. Set DATA = Address High Byte ($00 - $1F).
4. Give XTAL1 a positive pulse. This loads the address High Byte.
1. Give WR a negative pulse. This starts programming of the entire page of
2. Wait until RDY/BSY goes high.
1. Set XA1, XA0 to “10”. This enables command loading.
2. Set DATA to “0000 0000”. This is the command for No Operation.
3. Give XTAL1 a positive pulse. This loads the command, and the internal write
+12V
data. RDY/BSYgoes low.
(See Figure 83 for signal waveforms)
signals are reset.
$10
ADDR. LOW
ADDR. HIGH
DATA LOW
1142E–AVR–02/03