ATMEGA169P_14 Datasheet, PDF (254/395 Pages) ATMEL Corporation – High Performance, Low Power Atmel

Figure 24-1. Block Diagram
DEVICE BOUNDARY
I/O PORT 0
BOUNDARY SCAN CHAIN
TDI
TDO
TCK
TMS
TAP
CONTROLLER
INSTRUCTION
REGISTER
ID
REGISTER
M
U
BYPASS
X
REGISTER
BREAKPOINT
SCAN CHAIN
ADDRESS
DECODER
JTAG PROGRAMMING
INTERFACE
FLASH Address
MEMORY
Data
BREAKPOINT
UNIT
OCD STATUS
AND CONTROL
INTERNAL
SCAN
CHAIN
AVR CPU
PC
Instruction
FLOW CONTROL
UNIT
DIGITAL
PERIPHERAL
UNITS
JTAG / AVR CORE
COMMUNICATION
INTERFACE
ATmega169P
ANALOG
PERIPHERIAL
UNITS
Analog inputs
Control & Clock lines
I/O PORT n
8018P–AVR–08/10
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