Table 2-1. Pinout (Continued)
Pin
12
13
14
15
16
17
18
19
20
Signal
GND
TDO
GND
RESET
GND
-
GND
-
GND
Type
-
Input
-
I/O
-
NC
-
NC
-
Description
Common ground
JTAG data output from target CPU.
Typically connected to TDO on target CPU.
Common ground
Target CPU reset signal
Common ground
This pin is not connected in SAM-ICE.
Common ground
This pin is not connected in SAM-ICE.
Common ground
2.2
Debugging Multiple ARM ? Cores with SAM-ICE
SAM-ICE can handle multicore debugging. In this case, multiple ARM chips are connected to the same
JTAG connector as shown in Figure 2-1 .
Figure 2-1.
Multi-core Connections
TDI
Device 0
TDO
TDI
Device 1
TDO
2-2
6206C–ATARM–13-Feb-12
TDI
TCK
TMS
JTAG
TRST
TDO
AT91SAM-ICE User Guide
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