Segger J-Link - J-Link BASE

32 CHAPTER 1 Introduction
J-Link / J-Trace (UM08001) ©
2004-2017 SEGGER Microcontroller GmbH & Co. KG
1.3.2 J-Link BASE
J-Link BASE is a JTAG emulator designed for ARM cores. It con-
nects via USB to a PC running Microsoft Windows 2000 or later.
For a complete list of all operating systems which are sup-
ported, please refer to Supported OS on page 29. J-Link BASE
has a built-in 20-pin JTAG connector, which is compatible with
the standard 20-pin connector defined by ARM.
1.3.2.1 Additional features
• Direct download into flash memory of most popular micro-
controllers supported
• Full-speed USB 2.0 interface
• Serial Wire Debug supported
• Serial Wire Viewer supported
• Download speed up to 1 MBytes/second*
• Debug interface (JTAG/SWD/...) speed up to 15 MHz
• RDI interface available, which allows using J-Link with RDI
compliant software
*The actual speed depends on various factors, such as JTAG/
SWD, clock speed, host CPU core etc.
1.3.2.2 Specifications
The following table gives an overview about the specifications (general, mechanical,
electrical) for J-Link BASE.
General
Supported OS
For a complete list of all operating sys-
tems which are supported, please refer
to Supported OS on page 29.
Electromagnetic compatibility (EMC) EN 55022, EN 55024
Operating temperature +5°C ... +60°C
Storage temperature -20°C ... +65 °C
Relative humidity (non-condensing) Max. 90% rH
Mechanical
Size (without cables) 100mm x 53mm x 27mm
Weight (without cables) 70g
Available interfaces
USB interface USB 2.0, full speed
Target interface
JTAG 20-pin
(14-pin adapter available)
JTAG/SWD Interface, Electrical
Power supply
USB powered
Max. 50mA + Target Supply current.
Target interface voltage (V
IF
)
1.2V ... 5V
Target supply voltage 4.5V ... 5V (if powered with 5V on USB)
Target supply current Max. 300mA
Reset Type
Open drain. Can be pulled low or
tristated.
Reset low level output voltage (V
OL
)V
OL
<= 10% of V
IF
For the whole target voltage range (1.2V <= V
IF
<= 5V)
LOW level input voltage (V
IL
)V
IL
<= 40% of V
IF
Table 1.1: J-Link specifications