Technical information

Section 3 Software Specifications when Using the SH7080 Series/SH7146 Series/SH/Tiny Series
Rev. 5.00 Aug. 18, 2009 Page 42 of 78
REJ10J1237-0500
The following three items can be selected as the internal trace from [Type] of [I-Trace mode].
Table 3.11 Information on Acquiring the Internal Trace
Item Acquisition Information
[L-Bus & Branch] Acquires the data and branch information on the L-bus.
• Data access (read/write)
• Branch information
• Instruction fetch
[I-Bus] Acquires the data on the I-bus.
• Data access (read/write)
• Selection of the bus master on the I-bus (CPU/DMAC/DTC)
• Instruction fetch
[I-Bus, L-Bus & Branch] Acquires the contents of [L-Bus & Branch] and [I-Bus].
After selecting [Type] of [I-Trace mode], select the content to be acquired from [Acquisition].
Typical examples are described below (note that items disabled for [Acquisition] are not
acquired).
For the MCUs that incorporate neither DMAC or DTC, do not select DMA or DTC when
selecting the bus master on the I-bus.
• Example of acquiring branch information only:
Select [L-Bus & Branch] from [Type] and enable [Branch] on [Acquisition].
• Example of acquiring the read or write access (L-bus) only by a user program:
Select [L-Bus & Branch] from [Type] and enable [Read], [Write], and [Data access] on
[Acquisition].
• Example of acquiring the read access only by DMA (I-bus):
Select [I-Bus] from [Type] and enable [Read], [DMA], and [Data access] on [Acquisition].