Atmel Evaluation Kit for AT32uC3A0512, 32-Bit AVR Microcontroller Atmel ATEVK1105 ATEVK1105 Data Sheet
Product codes
ATEVK1105
742
AT32UC3A
36.3
Block diagram
Figure 36-1.
JTAG and Boundary Scan access
AVR32 device
JTAG data registers
TAP
Controller
TCK
TMS
TDO
Instruction Register
ID Register
By-
pass
Reset
Register
Service Access Bus
interface
B
ou
nd
ar
y
S
ca
n
C
ha
in
CPU
Memories and
peripherals
OCD Registers
Pin
s
and
anal
og
bl
ocks
Instruction Register
Scan enable
Data register
scan enable
JT
A
G
TAP
Boundary scan enable
JTAG device
JTAG master
TCK
TDI
TDO
...
TDI
TMS
RAM
High
Sp
eed
Bus
Bus
Memory Service
Unit
Service
Access
Bus
32058K
AVR32-01/12