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Chapter 22
On-Chip Debug Function
User’s Manual U16702EE3V2UD00
(2)
Pin functions
The following table shows the pin functions of the connector for emulator connection (target
system side). “I/O” indicates the direction viewed from the device.
Cautions: 1. The connection of the pins not supported by the V850E/RS1 series is dependent
upon the emulator to be used.
2. The pattern of the target board must satisfy the following conditions.
• The pattern length must be 100 mm or less.
• The clock signal must be shielded by GND.
Table 22-2:
Pin Functions of Connector for Emulator Connection (Target System Side)
Pin No.
Pin Name
I/O
Pin Function
A1
(Reserved 1)
–
(Connect to GND)
A2
(Reserved 2)
–
(Connect to GND)
A3
(Reserved 3)
–
(Connect to GND)
A4
(Reserved 4)
–
(Connect to GND)
A5
(Reserved 5)
–
(Connect to GND)
A6
(Reserved 6)
–
(Connect to GND)
A7
DDI
Input
Data input for N-Wire interface
A8
DCK
Input
Clock input for N-Wire interface
A9
DMS
Input
Transfer mode select input for N-Wire interface
A10
DD0
Output
Data output for N-Wire interface
A11
DRST
Input
On-chip debug unit reset input
A12
RESET
Input
Reset input. (In a system that uses only POC reset and
not pin reset, some emulators input an external reset sig-
nal as shown in Figure 18-5 to set the OCDM0 bit to 1.)
A13
FLMD0
Input
Control signal for flash download (flash memory versions
only)
B1
GND
–
–
B2
GND
–
–
B3
GND
–
–
B4
GND
–
–
B5
GND
–
–
B6
GND
–
–
B7
GND
–
–
B8
GND
–
–
B9
GND
–
–
B10
GND
–
–
B11
(Reserved 8)
–
(Connect to GND)
B12
(Reserved 9)
–
(Connect to GND)
B13
V
DD
–
5 V input (for monitoring power supply to target)
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