Epson S5U1C31001L1200 User manual

Rev.1.0
CMOS 32-BIT SINGLE CHIP MICROCONTROLLER
S5U1C31001L1200
(Bridge Board Ver. 2)
Manual

Evaluation board/kit and Development tool important notice
1. This evaluation board/kit or development tool is designed for use for engineering evaluation, demonstration, or
development purposes only. Do not use it for other purposes. It is not intended to meet the requirements of
design for finished products.
2. This evaluation board/kit or development tool is intended for use by an electronics engineer and is not a
consumer product. The user should use it properly and in a safe manner. Seiko Epson dose not assume any
responsibility or liability of any kind of damage and/or fire coursed by the use of it. The user should cease to
use it when any abnormal issue occurs even during proper and safe use.
3. The part used for this evaluation board/kit or development tool may be changed without any notice.
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©SEIKO EPSON CORPORATION 2017, All rights reserved.

S5U1C31001L1200 (Bridge Board Ver. 2) Seiko Epson Corporation i
Manual (Rev.1.0)
Table of Contents
1. Overview ....................................................................................................................1
1.1 Function ................................................................................................................................. 1
2. Connection Examples ...............................................................................................2
3. Name and Function of Each Part ..............................................................................3
4. Connectors.................................................................................................................4
4.1 20-pin Legacy Connector (J1) ............................................................................................... 4
4.2 10-pin User Target Connector (J2) ........................................................................................ 5
Appendix 1. Circuit Configuration Example to Eliminate External Power Supply for
Target Board ................................................................................................6
Appendix 2. Application to Multi-Programmer ...............................................................7
A2.1 How to Change Jumper Setting ............................................................................................ 7
A2.2 ENVPP Signal ......................................................................................................................... 7
Revision History...............................................................................................................8

1. Overview
S5U1C31001L1200 (Bridge Board Ver. 2) Seiko Epson Corporation 1
Manual (Rev.1.0)
1. Overview
The S5U1C31001L1200 (Bridge Board Ver. 2) is an adapter board which is inserted between general-purpose
debug probe (e.g. IAR I-jet or SEGGER J-Link) and a target board when debugging an S1C13 Family MCU.
1.1 Function
 Outputs and controls VPP voltage (+7.5 V).
 Supplies +3 V and +5 V power voltages.
 Passes control and data signals between the debug probe and the target board.
The flash memory embedded in the S1C31 Family MCUs requires a +7.5 V flash programming power supply (VPP)
for high-speed programming with user program/data. This board generates the VPP by boosting the 5 V power
voltage supplied by the debug probe (*1) and supplies it to the target board. The VPP output is controlled using the
ENVPP signal output from the S1C31 Family MCU (*2).
When using the power voltage booster (*3) included in the S1C31 Family MCU, set JP2 on this board to open (OFF)
so that VPP will not be supplied to the target board from this board.
This board uses the +5 V from the debug probe for the +5 V power output to the target board. The +3 V power for
the target board is generated using the step-down regulator on this board from the +5 V. These power voltages
should only be used within the maximum allowable current of the debug probe.
(*1) Supply +5 V to the external power supply connector J3 (see Figure 3.1) when using a debug probe that has no +5 V supply (e.g.
uLink).
(*2) This function is required only in debug mode. The ENVPP pin can be used for the original functions, however, make sure that
this does not affect the external circuits.
It is not necessary to use this board when using the MCU's power voltage booster.
(*3) For more information, refer to the technical manual for the S1C31 Family MCU model to be used.
Figure 1.1 S5U1C31001L1200 (Bridge Board Ver. 2) External View

2. Connection Examples
2 Seiko Epson Corporation S5U1C31001L1200 (Bridge Board Ver. 2)
Manual (Rev.1.0)
2. Connection Examples
When J-Link is used
Figure 2.1 Connection Diagram when J-Link is Used
When I-jet is used
Connect the I-jet to the 20-pin legacy connector on the S5U1C31001L1200 (Bridge Board Ver. 2) using the
pitch conversion adapter (ARM-20) that comes with the I-jet.
Figure 2.2 Connection Diagram when I-jet is Used
J-Link (SEGGER)
S5U1C31001L1200
(Bridge Board Ver. 2)
USB
cable
User target board
20-pin legacy cable
10-pin user target cable
User target board
I-jet (IAR)
USB
cable
10-pin user target cable
S5U1C31001L1200
(Bridge Board Ver. 2)
ARM-20 adapter

3. Name and Function of Each Part
S5U1C31001L1200 (Bridge Board Ver. 2) Seiko Epson Corporation 3
Manual (Rev.1.0)
3. Name and Function of Each Part
Figure 3.1 Parts Layout Diagram
Table 3.1 Name and Setting of Each Part
No
Symbol
Function name
Setting for debugging
1
J1 (Legacy 20pin)
Debug probe connector
Connect with a debug probe.
2
J3
External power supply connector
(DC +5.0 V ±10%)
Unused.
However, supply +5 V to this connector if a
debug probe that has no power supply is used.
3
J2 (USER Target 10pin)
User target board connector
Connect with a target board.
4
JP3
VPP control selection jumper for
multi-programming
Short (default)
5
JP4
VPP control (ENVPP) selection
jumper for debugging
Short (default)
6
JP5
VPP control selection jumper for
multi-programming
Open (default)
7
JP2
VPP output ON/OFF jumper
Set to ON (Short) to supply VPP to the target
board. Set to OFF (Open) when the MCU's
power voltage booster is used.
* The jumpers are set as shown in the “Setting for debugging” column at factory shipment.
①
②
③
⑤
⑥
⑦
④

4. Connectors
4 Seiko Epson Corporation S5U1C31001L1200 (Bridge Board Ver. 2)
Manual (Rev.1.0)
4. Connectors
4.1 20-pin Legacy Connector (J1)
Table 4.1 20-pin Legacy Connector (J1) Pin Assignment Table
No
Name
I/O
Description
1
VTref
O
Reference voltage of the target MCU
2
–
–
N.C.
3
–
–
N.C
4
GND
P
GND
5
–
–
N.C.
6
GND
P
GND
7
SWDIO
I/O
Serial wire data input/output
8
GND
P
GND
9
SWDCLK
I
Serial wire clock input
10
GND
P
GND
11
–
–
N.C.
12
GND
P
GND
13
–
–
N.C.
14
GND
P
GND
15
nRESET
I
Target MCU reset
16
GND
P
GND
17
–
–
N.C.
18
GND
P
GND
19
+5V
P (I)
DC +5 V input
20
GND
P
GND
Figure 4.1 20-pin Legacy Connector (J1) Pin Assignment

4. Connectors
S5U1C31001L1200 (Bridge Board Ver. 2) Seiko Epson Corporation 5
Manual (Rev.1.0)
4.2 10-pin User Target Connector (J2)
Table 4.2 10-pin User Target Connector (J2) Pin Assignment Table
No
Name
I/O
Description
1
SWDCLK
O
Serial wire clock output
2
GND
P
GND
3
SWDIO
I/O
Serial wire data input/output
4
+3V
P (O)
DC +3 V power voltage output
5
VPP
P (O)
Flash programming power voltage output
6
GND
P
GND
7
nRESET
O
Target MCU reset
8
VTref
I
Reference voltage of the target MCU
9
VCC
P (O)
DC +5 V power voltage output
10
ENVPP
I
VPP control signal input
Figure 4.2 10-pin User Target Connector (J2) Pin Assignment

Appendix 1. Circuit Configuration Example to Eliminate External Power Supply for
Target Board
6 Seiko Epson Corporation S5U1C31001L1200 (Bridge Board Ver. 2)
Manual (Rev.1.0)
Appendix 1. Circuit Configuration Example to Eliminate External Power
Supply for Target Board
The S5U1C31001L1200 (Bridge Board Ver. 2) can supply +5 V and +3 V fixed power only to the target board. If
the target board requires another voltage to operate, it must be externally supplied to the target board.
You can make a debugging environment without an external power supply by mounting a voltage regulator, which
is driven with +5 V from the S5U1C31001L1200 (Bridge Board Ver. 2), on the target board (See Figure A1.1).
When connecting a reset circuit that uses a push switch on the target board to the #RESET pin of the S1C31 Family
MCU, it should be designed so that no conflict will occur between the reset signal on the target board and the
nRESET signal of the debug probe.
Figure A1.1 Circuit Configuration Example to Eliminate External Power Supply for Target Board
Bridge Board Ver. 2
ENVPP
VPP
VCC
+3 V
VTref
nRESET
SWCLK
SWDIO
GND
Regulator
S1C31 Family
MCU
Vpp
Vdd
#RESET
SWCLK
SWD
GND
Debug
Probe
+5 V
VTref
nRESET
SWCLK
SWDIO
GND
Target Board
Reset
circuit
ENVPP

Appendix 2. Application to Multi-Programmer
S5U1C31001L1200 (Bridge Board Ver. 2) Seiko Epson Corporation 7
Manual (Rev.1.0)
Appendix 2. Application to Multi-Programmer
The S5U1C31001L1200 (Bridge Board Ver. 2) allows multi-programming (*1) using a J-Link. Multi-programming
uses the +5 V power output of the J-Link as the VPP ON/OFF control signal. This does not allow use of the +5 V as
the power source of this board. Therefore, multi-programming requires an external power supply (DC +5 V) to
drive this board and to change the jumper settings on this board.
When performing multi-programming using the MCU’s power voltage booster, this board is not required.
(*1) The flash memories of more than one S1C31 Family MCU can be programmed simultaneously using a J-Link and the J-Flash
flash programming software that comes with the J-Link. For more information, refer to “Multi-Programming Application
Notes.”
Table A2.1 Settings for Multi-Programming
No.
Symbol
Function name
Setting for multi-programming
1
J1 (Legacy 20pin)
Debug probe connector
Connect with J-Link.
2
J3
External power supply connector
(DC +5.0 V ±10%)
Supply +5 V to this connector from
an external power supply.
3
J2 (USER Target 10pin)
User target connector
Connect with a target board.
4
JP3
VPP control selection jumper for
multi-programming
Open (pattern cut)
5
JP4
VPP control (ENVPP) selection jumper
for debugging
Open (pattern cut)
6
JP5
VPP control selection jumper for
multi-programming
Short (with soldering)
7
JP2
VPP output ON/OFF jumper
Set to ON (Short) to supply VPP to
the target board.
A2.1 How to Change Jumper Setting
[When the JP3, JP4, and JP5 are used for the first time]
To set JP3 and JP4 to Open, cut the center of their shorted pad patterns. To short JP5, solder the separated short
pads.
A2.2 ENVPP Signal
Multi-programming does not require the ENVPP signal. Therefore, it is not necessary to connect the ENVPP signal
of the target board to this board. This board is not affected even if the ENVPP signal is connected.
Pattern cut (JP3, JP4)
Solder
Solder to short (JP5)

Revision History
8 Seiko Epson Corporation S5U1C31001L1200 (Bridge Board Ver. 2)
Manual (Rev.1.0)
Revision History
Attachment-1
Rev. No.
Date
Page
Category
Contents
Rev 1.0
2017/07/25
All
New
New establishment

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