Atmel Evaluation Kit AT91SAM9G25-EK AT91SAM9G25-EK Data Sheet
Product codes
AT91SAM9G25-EK
262
SAM9G25 [DATASHEET]
11032C–ATARM–25-Jan-13
24.3
Block Diagram
Figure 24-1. Debug Unit Functional Block Diagram
Figure 24-2. Debug Unit Application Example
DMA Controller
B
au
d R
a
te
Gener
a
tor
DCC
H
a
ndler
ICE
Acce
ss
H
a
ndler
Tr
a
n
s
mit
Receive
Chip ID
Interr
u
pt
Control
Peripher
a
l
Bridge
P
a
r
a
llel
Inp
u
t/
O
u
tp
u
t
DTXD
DRXD
Power
M
a
n
a
gement
Controller
ARM
Proce
ss
or
force_ntr
s
t
COMMRX
COMMTX
MCK
nTR
S
T
Power-on
Re
s
et
d
b
g
u
_ir
q
APB
De
bu
g Unit
Table 24-1. Debug Unit Pin Description
Pin Name
Description
Type
DRXD
Debug Receive Data
Input
DTXD
Debug Transmit Data
Output
Debug Unit
RS232 Drivers
Programming Tool
Trace Console
Debug Console
Boot Program
Debug Monitor
Trace Manager