Renesas M306K9T2-CPE, Руководство пользователя

Страница: 10 / 56

( 10 / 56 )
IMPORTANT
Notes on Differences between the Actual MCU and Emulator:
• Operations of the emulator differs from those of flash version MCUs as listed below.
(1) Reset condition
Set the time for starting up (0.2 to 0.8 Vcc) 1
µ
s or less.
(2) Data values of ROM areas at power-on
When power is turned on, the ROM areas of the emulator are defaulted to 04h.
(3) Register values when power is turned on
When power is turned on, the emulator's register values are defaulted to 0. However, the
program counter is defaulted to the reset vector value (E0000h) initially set by the emulator.
(4) Internal memory (RAM and ROM) capacity, etc.
Because the internal memories (RAM and ROM) are emulated by the emulation memory, the
capacity and assignment of the emulator's internal memories differ from those of the actual
MCU. For memory mapping, see "4.2 Memory Map" (page 39).
(5) MCU functions
Some MCU functions cannot be used in the emulator system. For details, refer to "Note on
MCU Functions That Cannot Be Used with This Emulator" (page 11).
(6) DBC*, single-step and BRK instruction interrupt vector table addresses
As the emulator uses the DBC*, single-step and BRK instruction interrupt vector table
addresses, when data is read out from these addresses, the data are different from expected
values.
(7) A-D and D-A converter function
As A-D and D-A converters have a pitch converter board between the evaluation MCU and
the target system, some characteristics are slightly different from those of the actual MCU.
• As a pitch converter board and other devices are used between the evaluation MCU and the target
system, some characteristics are slightly different from those of the actual MCU. Therefore, be sure
to evaluate your system with an evaluation MCU. Before starting mask production, evaluate your
system and make final confirmation with a CS (Commercial Sample) version MCU.
Factor of interruption
DBC* 1
Single-step*
1
BRK instruction
Vector table addresses
FFFF4h--FFFF7h
FFFECh--FFFEFh
FFFE4h--FFFE7h
Data read
Indefinite
Indefinite
Indefinite
*1 Interruption for the emulator only