ATMEGA16U2-16AU Atmel, ATMEGA16U2-16AU Datasheet - Page 254

• Manufacturer Part Number: ATMEGA16U2-16AU
• Description: 8-bit Microcontrollers - MCU 16K Flash
• Manufacturer: Atmel

Specifications of ATMEGA16U2-16AU

• Product Category: 8-bit Microcontrollers - MCU
• Rohs: yes
• Core: AVR
• Data Bus Width: 8 bit
• Program Memory Size: 16 KB
• Data Ram Size: 1.25 KB
• Data Rom Size: 512 B
• Program Memory Type: Flash
• Factory Pack Quantity: 1250

7799D–AVR–11/10
I. Program Page
J. Repeat B through I until the entire Flash is programmed or until all data has been
programmed.
K. End Page Programming
Figure 25-2. Addressing the Flash Which is Organized in Pages
Note:
1. Set XA1, XA0 to “00”. This enables address loading.
2. Set BS2, BS1 to “10”. This selects the address extended high byte.
3. Set DATA = Address extended high byte (0x00 - 0xFF).
4. Give XTAL1 a positive pulse. This loads the address high byte.
1. Set BS2, BS1 to “00”
2. Give WR a negative pulse. This starts programming of the entire page of data.
3. Wait until RDY/BSY goes high (See
1. 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 signals
RDY/BSY goes low.
are reset.
1. PCPAGE and PCWORD are listed in
PROGRAM MEMORY
PROGRAM
COUNTER
PAGE
PAGE ADDRESS
WITHIN THE FLASH
PCMSB
PCPAGE
Figure 25-3
PAGEMSB
PCWORD
Table 25-7 on page
WORD ADDRESS
WITHIN A PAGE
ATmega8U2/16U2/32U2
for signal waveforms).
INSTRUCTION WORD
PAGE
249.
(1)
PCWORD[PAGEMSB:0]:
00
01
02
PAGEEND
254