E2, IE850A
4. Functional overview
R20UT4140EJ0300 Rev.3.00
Page 22 of 41
Oct.09.20
Table 4-2 Functions Specific to the E2 Emulator
Parameter
E2 Emulator
Software tracing (LPD
output)
(Refer to section 4.2.)
Condition of
the debugging
mode
Only available in the synchronous debugging mode.
Not available in GTM debugging.
Target CPU
Selection of a single CPU. (When the debugger is connected to the
emulator, a single target CPU is selected. If the target CPU is changed,
the debugger must be re-connected to the emulator.)
Destination for
storage
“E2 storage”: Memory for storage in the E2 emulator
Internal buffer
Eight stages*
Traced data
Software trace data + timestamps (given by the E2 emulator)
Resolution: 8.333 ns, maximum 27 days
Conditions to
start and stop
recording of
data
Starting and stopping of program execution (breaks)
Priority of trace
acquisition
Real-time trace mode (priority given to speed)
Non-real-time trace mode (priority given to data)
Recording of
trace memory
Ring mode (overwriting mode)
Trace-full stop mode
Trace-full break mode
External trigger
input/output
Input signal
channels
E2 expansion interface: 2 (ch. 0: pin 11, ch. 1: pin 12)
Output signal
channels
E2 expansion interface: 2 (ch. 0: pin 9, ch. 1: pin 10)
Interface
voltage
When the emulator is not supplying power to the user system: TVDD
voltage or any voltage between 1.8 V to 5.0 V
When the emulator is supplying power to the user system: Voltage
being supplied to the user system
Conditions for
detection of
trigger inputs
Edge detection (rising, falling, or both edges)
Level detection (low or high)
Operation
when a trigger
is input
When software tracing (LPD output) is in use: Break
When software tracing (LPD output) is not in use: Break or stopping of
recording in internal trace memory
Condition for
detection of
trigger outputs
Break detection
Operation
when a trigger
is output
Output of a low or high pulse (for from 1
µ
sec to 65535
µ
sec) can be
specified.
Note: The output of the combination of a PC value and the corresponding immediate or register value uses one stage of
the internal buffer. When software tracing data have been stored up to the seventh stage of the internal buffer, an
overflow message is stored in the eighth stage.
