ATMEGA323-8AC Atmel, ATMEGA323-8AC Datasheet - Page 208

• Manufacturer Part Number: ATMEGA323-8AC
• Description: IC AVR MCU 32K 8MHZ COM 44TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA323-8AC

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Size: 32KB (16K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 1K x 8
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 44-TQFP, 44-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: ATMEGA3238AC

Virtual Flash Page
Load Register
208
ATmega323(L)
The Virtual Flash Page Load Register is a virtual scan chain with length equal to the
number of bits in one Flash page, 1,024. Internally the Shift Register is 8-bit, and the
data are automatically transferred to the Flash page buffer byte-by-byte. Shift in all
instruction words in the page, starting with the LSB of the instruction with page address
0 and ending with the MSB of the instruction with page address 3F. This provides an
efficient way to load the entire Flash page buffer before executing Page Write.
Figure 104. Virtual Flash Page Load Register
TDO
TDI
D
A
T
A
machine
State
STROBES
ADDRESS
EEPROM
Lock Bits
Fuses
Flash
1457G–AVR–09/03