QB-MINI2-EE NEC, QB-MINI2-EE Datasheet - Page 65

• Manufacturer Part Number: QB-MINI2-EE
• Description: EMULATOR, PROGRAMMER, MINICUBE2
• Manufacturer: NEC
• Type: Debug Emulatorr

Specifications of QB-MINI2-EE

• Svhc: No SVHC (18-Jun-2010)
• Mcu Supported Families: MINICUBE2
• Silicon Family Name: V850, 78K0R, 78K0S
• Ic Product Type: On-Chip Debug Emulator
• Kit Contents: MINICUBE2, USB Cable, Target Cable, 78K0-OCD Board
• Features: On-Chip Debugging, Flash Memory Programming,

(1) Automatically switching the reset signal via resistor
Remark
Remark
Figure 4-10 illustrates the reset pin connection described in 4.1.2 Circuit connection examples.
This connection is designed assuming that the reset circuit on the target system contains an N-ch open-drain
buffer (output resistance: 100 Ω or less).
RESET_IN/OUT of MINICUBE2 is inverted, so observe the conditions described below in Remark.
Figure 4-11 illustrates the circuit connection for the case where the reset circuit on the target system contains
no buffers and the reset signal is only generated via resistors or capacitors. Design the circuit, observing the
conditions described below in Remark.
Make the resistance of at least R1 ten times that of R2, R1 being 10 k Ω or more.
Pull-up resistor R2 is not required if the buffer of the reset circuit consists of CMOS output.
The circuit enclosed by a dashed line is not required when only flash programming is performed.
Make the resistance of at least R1 ten times that of R2, R1 being 10 k Ω or more.
The circuit enclosed by a dashed line is not required when only flash programming is performed.
MINICUBE2
MINICUBE2
Figure 4-13. Circuit Connection with Reset Circuit That Contains No Buffers
RESET_OUT
RESET_OUT
Figure 4-12. Circuit Connection with Reset Circuit That Contains Buffer
MINICUBE2
MINICUBE2
RESET_IN
RESET_IN
CHAPTER 4
RESET_OUT
RESET_OUT
RESET_IN
RESET_IN
HOW TO USE MINICUBE2 WITH 78K0 MICROCONTROLLER
R1
R1
R1
R1
User’s Manual U18371EJ1V0UM
The VDD or GND level may be unstable when the logic of
Target device
Target device
_RESET
_RESET
Target device
Target device
_RESET
_RESET
R2
R2
V
V
DD
DD
Reset connector
Reset connector
Reset connector
Reset connector
Buffer
Buffer
R2
R2
V
V
DD
DD
V
V
DD
DD
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