Atmel ARM-Based Evaluation Kit for SAM4S16C, 32-Bit ARM® Cortex® Microcontroller ATSAM4S-WPIR-RD ATSAM4S-WPIR-RD Data Sheet
Product codes
ATSAM4S-WPIR-RD
14
SAM4S-WPIR-RD [USER GUIDE]
42060A–ATARM–12/2012
4.3.2
USB Micro AB
Figure 4-11.
USB Device Micro-B Connector J1
Table 4-4. USB Device Micro-B Connector J1 Signal Descriptions
10
GND
Common ground
11
RTCK - Input Return test clock signal from
the target.
the target.
Some targets must synchronize the JTAG inputs to internal clocks. To assist in
meeting this requirement, a returned and retimed TCK can be used to
dynamically control the TCK rate. SAM-ICE supports adaptive clocking which
waits for TCK changes to be echoed correctly before making further changes.
Connect to RTCK if available, otherwise to GND.
meeting this requirement, a returned and retimed TCK can be used to
dynamically control the TCK rate. SAM-ICE supports adaptive clocking which
waits for TCK changes to be echoed correctly before making further changes.
Connect to RTCK if available, otherwise to GND.
12
GND
Common ground
13
TDO JTAG TEST DATA OUTPUT - Serial
data input from the target.
data input from the target.
JTAG data output from target CPU. Typically connected to TDO on target CPU.
14
GND
Common ground
15
nSRST RESET
Active-low reset signal. Target CPU reset signal.
16
GND
Common ground
17
RFU
This pin is not connected in SAM-ICE.
18
GND
Common ground
19
RFU
This pin is not connected in SAM-ICE.
20
GND
Common ground
Pin
Mnemonic
Description
Pin
Mnemonic
Description
1
Vbus
5v power
2
DM
Data minus
3
DP
Data plus
4
ID
Not used
5
GND
Common ground