User`s manual

SuperH Family E10A-USB Emulator for Multi-core Microcomputers Section 6 Tutorial SH-2A
R20UT0363EJ0500 Rev. 5.00 Page 150 of 296
Aug 10, 2012
6.4 Setting up the Emulator
The clocks which are used for data communications must be set up on the emulator before the
program is downloaded.
 AUD clock
A clock used in acquiring AUD traces.
If its frequency is set too low, complete data may not be acquired during realtime tracing.
Set the frequency not to exceed the upper limit for the MPU’s AUD clock.
The AUD clock is only needed for using emulators that have an AUD trace function.
 JTAG (H-UDI) clock (TCK)
This is the clock for transfer in cases other than an AUD trace.
If its frequency is set too low, downloading will be slow.
Set a frequency that does not exceed the upper limit of the guaranteed TCK range for the
supported device.
For details on the upper limits on the frequency of the AUD Clock (AUDCK) and TCK for all
products, refer to section 2.2.3, Notes on the Trace Function (4) AUD Trace, and section 2.2.4,
Notes on Using the JTAG (H-UDI) Clock (TCK), in the additional document, Supplementary
Information on Using the SHxxxx.
The following is a description of the procedure used to set the clocks.