8.10.00 J-TRACE ARM Segger Microcontroller Systems, 8.10.00 J-TRACE ARM Datasheet - Page 216
![JTAG EMULATOR ARM7/ARM9 ETM](/photos/9/27/92738/8_10_00-j-trace-arm_sml.jpg)
8.10.00 J-TRACE ARM
Manufacturer Part Number
8.10.00 J-TRACE ARM
Description
JTAG EMULATOR ARM7/ARM9 ETM
Manufacturer
Segger Microcontroller Systems
Type
Emulatorr
Specifications of 8.10.00 J-TRACE ARM
Contents
Emulation Module
For Use With/related Products
ARM7, ARM9
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
899-1006
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216
J-Link / J-Trace (UM08001)
Processor Core
The part of a microprocessor that reads instructions from memory and executes
them, including the instruction fetch unit, arithmetic and logic unit, and the register
bank. It excludes optional coprocessors, caches, and the memory management unit.
Program Status Register (PSR)
Contains some information about the current program and some information about
the current processor state. Often, therefore, also referred to as Processor Status
Register.
Also referred to as Current PSR (CPSR), to emphasize the distinction to the Saved
PSR (SPSR). The SPSR holds the value the PSR had when the current function was
called, and which will be restored when control is returned.
Remapping
Changing the address of physical memory or devices after the application has started
executing. This is typically done to make RAM replace ROM once the initialization has
been done.
Remote Debug Interface (RDI)
RDI is an open ARM standard procedural interface between a debugger and the
debug agent. The widest possible adoption of this standard is encouraged.
RTCK
Returned TCK. The signal which enables Adaptive Clocking.
RTOS
Real Time Operating System.
Scan Chain
A group of one or more registers from one or more TAP controllers connected
between TDI and TDO, through which test data is shifted.
Semihosting
A mechanism whereby the target communicates I/O requests made in the application
code to the host system, rather than attempting to support the I/O itself.
SWI
Software Interrupt. An instruction that causes the processor to call a programer-
specified subroutine. Used by ARM to handle semihosting.
TAP Controller
Logic on a device which allows access to some or all of that device for test purposes.
The circuit functionality is defined in IEEE1149.1.
Target
The actual processor (real silicon or simulated) on which the application program is
running.
TCK
The electronic clock signal which times data on the TAP data lines TMS, TDI, and
TDO.
TDI
The electronic signal input to a TAP controller from the data source (upstream). Usu-
ally, this is seen connecting the J-Link / J-Trace Interface Unit to the first TAP control-
ler.
CHAPTER 12
© 2004-2011 SEGGER Microcontroller GmbH & Co. KG
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