User`s manual

SuperH Family E10A-USB Emulator for Multi-core Microcomputers Section 7 Tutorial SH-4A
R20UT0363EJ0500 Rev. 5.00 Page 214 of 296
Aug 10, 2012
7.4 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.
The frequency setting must also not exceed the supported device’s upper limit for the AUD
clock.
The AUD clock is only required for the AUD trace function.
 JTAG (H-UDI) clock (TCK)
A communication clock used except for acquiring AUD trace.
If its frequency is set too low, the speed of downloading will be lowered.
Set the frequency not to exceed the upper limit for the MPU’s guaranteed TCK range.
For details of the limitations on both clocks, refer to section 2.2.4, Notes on Using the JTAG (H-
UDI) Clock (TCK) and AUD Clock (AUDCK), in the additional document, Supplementary
Information on Using the SHxxxx.
The following is a description of the procedure used to set the clocks.