Datasheet

V850ES/JG3-H, V850ES/JH3-H CHAPTER 32 ON-CHIP DEBUG FUNCTION
R01UH0042EJ0500 Rev.5.00 Page 1394 of 1513
Aug 12, 2011
32.2 Debugging Without Using DCU
The following describes how to implement an on-chip debug function using MINICUBE2 with pins for UARTC0 (RXDC0
and TXDC0), pins for CSIF0 (SIF0, SOF0, SCKF0, and HS (P913)), or pins for CSIF3 (SIF3, SOF3, SCKF3, and HS
(P913)) as debug interfaces, without using the DCU.
32.2.1 Circuit connection examples
Figure 32-3. Circuit Connection Example When UARTC0/CSIF0/CSIF3 Is Used for Communication Interface
QB-MINI2 V850ES/JG3-H, V850ES/JH3-H
GND
V DD
V DD
RESET_OUT
RXD/SI
Note 1
VDD
TXD/SO
Note 1
SCK
HS
CLK
Note 2
FLMD1
Note 3
FLMD0
Note 3
RESET_IN
Note 4
V SS
TXDC0/SOF0/SOF3
V DD
RXDC0/SIF0/SIF3
SCKF0/SCKF3
FLMD1
Reset circuit
FLMD0
Port X
100 Ω10 kΩ
1 to 10 kΩ
1 kΩ
RESET signal
10 kΩ
1 to 10 kΩ 1 to 10 kΩ
3 to 10 kΩ1 to 10 kΩ
V
DD
Note 5
V DD V DD
HS (P913)
RESET
MINICUBE2
MINICUBE2
Notes 1. Connect TXDC0/SOF0/SOF3 (transmit side) of the V850ES/JG3-H or V850ES/JH3-H to RXD/SI
(receive side) of the target connector, and TXD/SO (transmit side) of the target connector to
RXDC0/SIF0/SIF3 (receive side) of the V850ES/JG3-H or V850ES/JH3-H.
2. This pin may be used to supply a clock from MINICUBE2 during flash memory programming. For
details, refer to CHAPTER 31 FLASH MEMORY.
3. Because this pin is an (unused) input during debugging, its alternate function can be used. Note that,
within MINICUBE2, a 100 kΩ pull-down resistor is connected.
4. This connection is designed assuming that the RESET signal is output from the N-ch open-drain buffer
(output resistance: 100 Ω or less).
5. The circuit enclosed by a dashed line is designed for flash self programming, which controls the
FLMD0 pin via ports. Use the port for inputting or outputting the high level. When flash self
programming is not performed, a pull-down resistance for the FLMD0 pin can be within 1 to 10 kΩ.
Remark Refer to Table 32-3 for pins used when UARTC0, CSIF0, or CSIF3 is used for communication interface.