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Chapter 28
On-Chip Debug Unit
Preliminary User’s Manual U17566EE1V2UM00
(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.
Caution
1.
The connection of the pins not supported by the microcontroller 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 28-3
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
DDO
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 signal as shown in
Figure 28-6 on page 889
to set the OCDM0 bit to 1.)
A13
FLMD0
a
a)
The FLMD0 signal is not required, if the N-Wire debugger serves the FLMD0 signal internally by using the
SELFEN register to enable flash self-programming (refer to
“Flash Self-Programming” on page 234
). Howev-
er the FLMD0 signal may be connected.
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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