Renesas SDI Emulator System M32100T-EZ-E Informações Técnicas descarregar pdf (Página 10)

2.3. 32121 Group

(1) Differences between the emulator and MCUs

IMPORTANT

z The emulator initializes the MCU internal register to the following values. Initialization starts when the power

switch is turned ON or MCU is reset.

R0 = 00000000 R1 = 00000000 R2 = 00000000 R3 = 00000000 R4 = 00000000

R5 = 00000000 R6 = 00000000 R7 = 00000000 R8 = 00000000 R9 = 00000000

R10 = 00000000 R11 = 00000000 R12 = 00000000 R13 = 00000000 R14 = 00000000

R15 = 00000100 SPI = 00000100 SPU = 00000100 BPC = 00000000 PC = 00000000

ACCH = xxxxxxxx ACCL = xxxxxxxx

PSW = 00000000

z To execute a target program which transfers to the sleep mode or to the stop mode, you must observe the

following restrictions because of the MCU specifications:

(1) Add the instructions given below after the store instruction which transfers the target program to the sleep/stop

mode.

(2) Do not set a break point between the STB instruction and the last NOP instruction added.

Target program

LOOP:

Store instruction

BRA

NOP

LOOP

<--Instruction to transfer to the sleep/stop mode

Insert 16 NOP instructions after the address branch command.

z When a break is forced while the target MCU is set in the sleep/stop mode, the target MCU may return to the

normal mode. Also when memory is referenced or set while the target MCU is set in the sleep/stop mode, the

target MCU may return to the normal mode from the sleep/stop mode.

z Do not change the target MCU to the sleep/stop mode using the memory rewrite function of the emulator

debugger.

(2) MCU signals connected to the SDI MCU control interface connector (Section 3.2)

No.

Pin Direction Connected to Remarks

1 TCLK Emulator to target TCK of MCU Clock frequency: 5 MHz

2 Vss - GND (0 V)

3 TDI Emulator to target TDI of MCU

4 TDO Target to emulator TDO of MCU

5 TMS Emulator to target TMS of MCU

6 TRST Emulator to target TRST# of MCU Totem pole output on the emulator

7 DBI Emulator to target DBI# of MCU

8 FVCC Emulator to target FVCC of MCU Voltage is set to 2.5 V. Turned ON/OFF

according to the setting of the FVCC

switch.

9 Vcc Target to emulator VCCX of MCU

10 RST Emulator to target System reset Open corrector output on the emulator

1 2 ... 5 6 7 8 9 10 11 12 13

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