HS7751RKCM01H Renesas Electronics America, HS7751RKCM01H Datasheet - Page 249

• Manufacturer Part Number: HS7751RKCM01H
• Description: ON CHIP DEBUG EMULATOR W/TRACE
• Manufacturer: Renesas Electronics America

Specifications of HS7751RKCM01H

• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Notes: 1. The counter for performance measurement has 48 bits. A maximum of 2
2. Interrupts
Notes: 1. When interrupts are accepted during user break, user interrupt processing is not
During user program execution or in command input wait state, any interrupt to the SH7751R
can be used. Whether or not to process interrupts during user program break can be specified.
When no interrupt is processed during user program break
While the emulator is executing the user program or is in command input wait state,
interrupts are not processed generally. However, if an internal interrupt or an edge
sensitive external interrupt occurs in command input wait state, the emulator holds the
interrupt and executes the interrupt processing routine when the GO command is entered.
When interrupts are processed during a user program break
Use the INTERRUPT command to execute an interrupt during a user program break. This
function is supported only with the command lines.
2.
2.
3.
4.
2. Measuring ratio of execution time in specified program area to total execution
Execute only non-maskable interrupts (NMI)
Sets the priority and executes only interrupts with high priority
about 2.8 x 10
frequency is 267 MHz) can be measured. If a counter overflow occurs, the count
becomes invalid.
traced. In this case, continuous trace cannot be enabled.
For details on command-line syntax, refer to section 7 or the online help function.
Use the NOP instruction at the delay slot after the RTE instruction in the
interrupt handler.
If a user interrupt is inserted while the user program breaks until the processing
ends, do not set a BREAKPOINT in the interrupt handler. The emulator may
generate a Communication timeout error. Use the Break Condition function.
For details on window function and command-line syntax, refer to section 7 or
the online help function.
Specify measurement channel 1 to measure the elapsed cycle count from the start to
the end of user program execution. Specify measurement channel 2 to measure the
elapsed cycle count during execution from the specified start PC to the specified
end PC.
With both the channels, the total elapsed cycle and the elapsed cycle for the specified
program area can be measured, and the ratio of the execution time in the specified
program area to the total execution time can be obtained.
time
14
counts and about 11.6-day cycles (when the CPU operating
48
=
221