QB-V850MINIL, QB-V850MINI Emulator 3. On-Chip Debugging
R20UT0221EJ0400 Rev.4.00
Page 38 of 86
2013.08.30
3.5
Designing Target System Circuits When Using V850E2, V850E1, or V850ES
To debug the target system with QB-V850MINIL or QB-V850MINI connected, a circuit to connect QB-V850MINIL or
QB-V850MINI is required on the target system.
This section presents information required for circuit design. Read this information together with the information
described in the user’s manual of the target device.
Note that circuit design information when the target device is the V850E2S or V850E2M is described in
3.4 Designing
Target System Circuits When Using V850E2S or V850E2M.
3.5.1
Example of circuit design (for V850E2, V850E1, or V850ES)
Figure 3-11 illustrates an example of the design of a target system circuit that is used to connect QB-V850MINIL or
QB-V850MINI.
Figure 3-11. Circuit Connection Example
Signal Name
Outline of Signal
DCK
Clock for DCU
DMS
DCU state transition control signal
DDI
Data signal transmitted to DCU
DDO
Data signal transmitted from DCU
DRST#
DCU reset signal
FLMD0
Flash programming mode setting signal
RESET#
System reset input signal
V
DD
Power supply (The power supply for buffers of a debugging interface, or for power supply
detection of a target system)
GND
GND
Target device
QB-V850MINIL/
QB-V850MINI
DCK
DMS
DDI
DDO
DRST#
FLMD0
RESET#
VDD
GND
DCK
DMS
DDI
DDO
DRST#
FLMD0
RESET#
V
DD
V
DD
V
DD
