8.12.00 J-LINK ARM-PRO Segger Microcontroller Systems, 8.12.00 J-LINK ARM-PRO Datasheet - Page 107

• Manufacturer Part Number: 8.12.00 J-LINK ARM-PRO
• Description: JTAG EMULATOR USB ETHERNET ARM
• Manufacturer: Segger Microcontroller Systems
• Type: Emulatorr

Specifications of 8.12.00 J-LINK ARM-PRO

• Contents: Emulation Module
• For Use With/related Products: ARM7, ARM9, ARM11, Cortex
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 8.12.00 J-LINK ARM-PRO; 899-1007

5.5.3
5.5.3.1 JTAG speed
J-Link / J-Trace (UM08001)
6.
7.
Example:
Table 5.9: Multicore debugging
Cores to debug are marked in blue.
Multi-core debugging is more difficult than single-core debugging. You should be
aware of the pitfalls related to JTAG speed and resetting the target.
Each core has its own maximum JTAG speed. The maximum JTAG speed of all cores
in the same chain is the minimum of the maximum JTAG speeds.
For example:
Core #1:
Core #2:
Scan chain: 2MHz maximum JTAG speed
ARM7TDMI
ARM7TDMI
ARM7TDM
I-S
Core #1
Choose Project|Options and configure your second scan chain. The following
dialog box shows the configuration for the second ARM core on your target.
Start debugging your second core.
Things you should be aware of
ARM7TDMI-S
ARM7TDMI
ARM7TDMI-S ARM7TDMI-S
2MHz maximum JTAG speed
4MHz maximum JTAG speed
Core #2
ARM7TDMI 0
ARM7TDMI
Core #3
0
1
debugger #1
TAP number
© 2004-2011 SEGGER Microcontroller GmbH & Co. KG
1
2
2
debugger #2
TAP number
107