Renesas Emulation Pod M306H2T-RPD-E Informacje Techniczne Strona 60

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M306H5T3-RPD-E User’s Manual 4. Specifications
REJ10J0866-0100Z Rev.1.00 Dec.16, 2004
Page 58 of 66
IMPORTANT
Note on Reading Internal Resources of the MCU:
When the registers listed in Table 4.9 are read with an emulator, those results will be the following (the
data in the MCU are not effected).
(1) Results of real-time trace
The data values of the cycles read are not displayed correctly.
(2) Real-time RAM monitor
The data values read are not displayed correctly.
Table 4.9 Resisters and symbols not displayed normally
Resister Symbol
DMA source pointers 0, 1 SAR0, SAR1
DMA destination pointers 0, 1 DAR0, DAR1
DMA transfer counters 0, 1 TCR0, TCR1
DMA control resisters 0, 1 DM0CON, DM1CON
Note on Protect Register (PRC2):
Make note of the fact that the protect is not canceled when protect register (PRC2), which enables
writing in the port P9 direction register and the SI/Oi control register, is changed with the below
procedure.
(1) Step execution of the "instruction for setting ("1") PRC2"
(2) Execution from the instruction setting "1" to PRC2 where a software breakpoint is set
(3) Setting the break point from the "instruction for setting ("1") PRC2" to when the "setting the port
P9 direction register and the SI/Oi control register"
(4) Setting ("1") PRC2 from the dump window or script window
Note on Accessing Addresses 00000h and 00001h:
With the M16C/60 Series MCUs, when a maskable interrupt is generated, the interrupt data (interrupt
number and interrupt request level) stored in addresses 00000h and 00001h are read out. Also, the
interrupt request bit is cleared when address 00000h or 00001h is read out. Consequently, when the
address 00000h readout instruction is executed or when address 00000h or 00001h is read out in the
cause of a program runaway, a malfunction occurs in that the interrupt is not executed despite the
interrupt request, because the request bit of the highest priority interrupt factor enabled is cleared.
For this malfunction, when the reading out to the address 00000h or 00001h is generated excluding the
interrupt, the WANING LED (yellow) lights up to alarm. When this LED lights, there is a possibility of
wrong access, therefore check the program. This LED is turned off by the system reset switch of the
emulator main unit.
Note on Debugging Operations After Releasing a Reset from the Target:
Do not execute debugging operations such as setting a software or hardware break, runtime debugging
after releasing a reset from the user system until an interrupt stack pointer (ISP) is set in the user
program.
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