ATmega325PA Atmel Corporation, ATmega325PA Datasheet - Page 234

• Manufacturer Part Number: ATmega325PA
• Manufacturer: Atmel Corporation

Figure 24-1. Block Diagram
8285D–AVR–06/11
TDI
TDO
TCK
TMS
CONTROLLER
M
U
X
TAP
DEVICE BOUNDARY
ATmega165A/PA/325A/PA/3250A/PA/645A/P/6450A/P
INSTRUCTION
BREAKPOINT
SCAN CHAIN
REGISTER
REGISTER
REGISTER
BYPASS
ID
DECODER
ADDRESS
JTAG PROGRAMMING
MEMORY
FLASH
AND CONTROL
BREAKPOINT
OCD STATUS
INTERFACE
UNIT
Address
Data
I/O PORT 0
I/O PORT n
INTERNAL
FLOW CONTROL
CHAIN
SCAN
UNIT
BOUNDARY SCAN CHAIN
PC
Instruction
JTAG / AVR CORE
COMMUNICATION
PERIPHERAL
INTERFACE
AVR CPU
DIGITAL
UNITS
PERIPHERIAL
ANALOG
UNITS
Control & Clock lines
Analog inputs
234