Technical information

Section 3 Software Specifications when Using the SH72546RFCC, SH72544R, SH72543R, SH72531, and SH72531FCC
Rev. 2.00 Feb. 18, 2009 Page 67 of 94
REJ10J1938-0200
3. Clicking on the [Cancel] button, which is displayed on the progress bar during analysis, stops
trace analysis. At this time, nothing will be displayed in the [EVA AUD Trace] window.
3.2.3 Notes on Using the JTAG (H-UDI) Clock (TCK) and AUD Clock (AUDCK)
1. Set the JTAG clock (TCK) frequency to lower than the frequency of the SH72546R peripheral
module clock (CKP).
2. The initial value of the JTAG clock (TCK) is 15 MHz.
3. A value to be set for the JTAG clock (TCK) is initialized after executing [Reset CPU] or
[Reset Go]. Thus the TCK value will be 15 MHz.
4. Set the AUD clock (AUDCK) frequency to 50 MHz or lower. If the frequency is higher than
50 MHz, the emulator will not operate normally.
3.2.4 Notes on Setting the [Breakpoint] Dialog Box
1. When an odd address is set, the next lowest even address is used.
2. A BREAKPOINT is accomplished by replacing instructions of the specified address.
Accordingly, it can be set only to the internal RAM area.
A BREAKPOINT cannot be set to the following addresses:
⎯ An area other than CS and the internal RAM
⎯ An instruction in which Event Condition 2 is satisfied
⎯ A slot instruction of a delayed branch instruction
3. During step operation, the specified BREAKPOINT and Event Condition breaks are disabled.
4. When execution resumes from the address where a BREAKPOINT is specified and a break
occurs before the Event Condition execution, single-step operation is performed at the address
before execution resumes. Therefore, realtime operation cannot be performed.
5. When a BREAKPOINT is set to the slot instruction of a delayed branch instruction, the PC
value becomes an illegal value. Accordingly, do not set a BREAKPOINT to the slot
instruction of a delayed branch instruction.
6. If a BREAKPOINT cannot be correctly set to an address in the ROM or flash memory area, a
mark z will be displayed in the [BP] area of the address on the [Source] or [Disassembly]
window by refreshing the [Memory] window, etc. after Go execution. However, no break will
occur at this address. When the program halts with the break condition, the mark z
disappears.