Cypress MB2146-301A-E User manual

THIS SPEC IS OBSOLETE
Spec No
:
002
-
07496
Spec Title
:
MB2146
-
301A
-
E F2MC
-
8FX Family for
MB95FV100D
-
101 MCU Board Operation Guide
Replaced by
:
NONE

MB2146-301A-E
F2MC-8FX Family for MB95FV100D-101
MCU Board Operation Guide
Doc. # 002-07496 Rev. *A
Cypress Semiconductor
198 Champion Court
San Jose, CA 95134-1709
Phone (USA): 800.858.1810
Phone (Intnl): +1.408.943.2600
www.cypress.com

MB2146-301A-E F2MC-8FX Family for MB95FV100D-101 MCU Board Operation Guide, Doc. # 002-07496 Rev. *A 2
Copyrights
Copyrights
© Cypress Semiconductor Corporation, 2007-2016. This document is the property of Cypress Semiconductor Corporation
and its subsidiaries, including Spansion LLC (“Cypress”). This document, including any software or firmware included or refer-
enced in this document (“Software”), is owned by Cypress under the intellectual property laws and treaties of the United
States and other countries worldwide. Cypress reserves all rights under such laws and treaties and does not, except as spe-
cifically stated in this paragraph, grant any license under its patents, copyrights, trademarks, or other intellectual property
rights. If the Software is not accompanied by a license agreement and you do not otherwise have a written agreement with
Cypress governing the use of the Software, then Cypress hereby grants you a personal, non-exclusive, nontransferable
license (without the right to sublicense) (1) under its copyright rights in the Software (a) for Software provided in source code
form, to modify and reproduce the Software solely for use with Cypress hardware products, only internally within your organi-
zation, and (b) to distribute the Software in binary code form externally to end users (either directly or indirectly through resell-
ers and distributors), solely for use on Cypress hardware product units, and (2) under those claims of Cypress's patents that
are infringed by the Software (as provided by Cypress, unmodified) to make, use, distribute, and import the Software solely
for use with Cypress hardware products. Any other use, reproduction, modification, translation, or compilation of the Software
is prohibited.
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IMPLIED, WITH REGARD TO THIS DOCUMENT OR ANY SOFTWARE OR ACCOMPANYING HARDWARE, INCLUDING,
BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PUR-
POSE. To the extent permitted by applicable law, Cypress reserves the right to make changes to this document without fur-
ther notice. Cypress does not assume any liability arising out of the application or use of any product or circuit described in
this document. Any information provided in this document, including any sample design information or programming code, is
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ons, weapons systems, nuclear installations, life-support devices or systems, other medical devices or systems (including
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MB2146-301A-E F2MC-8FX Family for MB95FV100D-101 MCU Board Operation Guide, Doc. # 002-07496 Rev. *A 3
Preface
Thank you for purchasing the MCU board for the F2MC-8FX family MB95FV100D-101 (model
number: MB2146-301A-E).
The MB2146-301A-E is a development support tool for developing and evaluating applied products
based on the F2MC-8FX family of microcontrollers manufactured by Cypress.
This manual is intended for engineers who use the MB2146-301A-E (referred to below as the MCU
board) to develop applied products based on Cypress F2MC-8FX family microcontrollers. The
manual describes how to handle the MCU board and its functions as well as the setting procedures.
Be sure to read this manual before using the MCU board.
■Using the product safely
This manual contains important information required for using the MB2146-301A-E safely. Be sure to
read through the manual before using the product and follow the instructions contained therein to
use it correctly.
In particular, carefully read the “Caution of the products described in this document” at the beginning
of this manual to understand the requirements for safe use of the product before using it.
After reading the manual, keep it handy for future reference.
■Warranty and liability disclaimers
The specifications of the product are subject to change without notice.
In no event shall Cypress be liable for any loss or damages whatsoever directly or indirectly arising
out of the use of the product.
■Product operating environment
The operating temperature for the product ranges from 5°C to 35°C and the operating relative
humidity from 20% to 80%. Avoid using the product in hot or humid environment and prevent
condensation.
The product is a printed circuit board unit without a chassis such that all of the electronic
components are exposed. Therefore, neither put anything on the product nor touch or let an
electrically charged material contact a metal part of it. Once the product has been powered, try to
keep those objects away from it which can short-circuit it or easily catch fire and burn. Use the
product as horizontal as possible and avoid operating it at a place exposed to strong vibration, dust,
or explosive gas.
Note that using the product not in the above operating environment may unexpectedly cause
personal injury to the user (or another person if present near the product) or physical damage to
properties around the product.

MB2146-301A-E F2MC-8FX Family for MB95FV100D-101 MCU Board Operation Guide, Doc. # 002-07496 Rev. *A 4
Preface
You should also keep the packaging materials used for shipping the product. They work well as they
are when you transport the product again, for example, if it becomes out of order and needs to be
repaired.
■Related manuals
Refer to the following manuals for additional information:
❐Hardware manual of the MCU used
❐Data sheet of the MCU used
❐“MB2146-09A-E BGM Adapter Operation Manual”
❐Related “Header board operation manuals”
❐“SOFTUNE Workbench Operation Manual”
❐“SOFTUNE Workbench User’s Manual”
■European RoHS compliance
Products that have a “-E” suffix at the end of the part number are products that conform to the
European RoHS.

MB2146-301A-E F2MC-8FX Family for MB95FV100D-101 MCU Board Operation Guide, Doc. # 002-07496 Rev. *A 5
Preface
■Caution of the products described in this document
The following precautions apply to the product described in this manual.
CAUTION
Indicates a potentially hazardous situation which, if not avoided appropriately, may
result in minor or moderate injury and/or damage to the product or the equipment
to which the product is connected, to software resources such as data, or to other
properties.
Cuts, Damage
Before moving the product, be sure to turn off all the power supplies and unplug the
cables. Watch your steps when carrying the product. Do not use the product in an
unstable location such as a place exposed to strong vibration or a sloping surface.
Doing so may let the product fall, resulting in an injury or fault.
Cuts
The product has some sharp-pointed or edged parts inevitably exposed, such as
jumper plugs. Use meticulous care in handling the product not to get injured with
such pointed parts.
Damage
Neither put anything on or apply shock to the product. Once the product has been
powered, do not carry it.
Doing either may cause a fault due to overloading or shock.
Damage
Since the product contains many electronic components, keep it away from direct
sunlight, high temperature, and high humidity to prevent condensation. Do not use
or store the product where it is exposed to much dust or a strong magnetic or
electric field for an extended period of time.
An adverse operating or storage environment can cause a fault.
Damage Use the product within the ranges of its general specifications.
Operating it outside the range of any general specification may cause a fault.
Damage
To prevent electrostatic breakdown, do not let your finger or an object touch any
metal part of the connector. Before handling the product, touch a metal object (such
as a door knob) to discharge static electricity from your body.
Damage
Before turning the power on, in particular, be sure to finish making all the required
connections. To set up and use the product, follow the instructions given in this
document.
Using the product incorrectly or inappropriately may cause a fault.
Damage
Before plugging or unplugging any cable for this product, be sure to turn the power
supply off. When unplugging a cable, remove it while holding the connector without
pulling the cable itself. Pulling the cable itself or bending it may expose or
disconnect the cable core, resulting in a fault.
Damage
Because the product has no casing, it is recommended that it be stored in the
original packaging. Re-transporting the product may damage it to cause a fault.
Keep the packaging materials used for shipment of the product and use them when
re-transporting it.

MB2146-301A-E F2MC-8FX Family for MB95FV100D-101 MCU Board Operation Guide, Doc. # 002-07496 Rev. *A 6
Contents
1. Product Outline 7
1.1 Product Configuration ..................................................................................................8
1.2 Appearance and Part Name ........................................................................................9
2. Checking the Delivered Product 10
3. Connections 11
3.1 Connecting the MCU board to the header board.......................................................11
3.2 Connecting the MCU board to the BGM adapter.......................................................12
3.3 Note on Connection ...................................................................................................13
3.4 Disconnection ............................................................................................................13
4. How to Setup 14
4.1 How to the switch and jumper plug on a MCU board setup.......................................14
4.2 How to Oscillator Mounting on a MCU board ............................................................15
4.3 Handling Notes ..........................................................................................................15
4.4 Setting of the Switch and Jumper Plug......................................................................16
4.5 Setting of the Clock Input Selector Switch (SW2)......................................................17
4.6 Setting of the Product Selector Switch (SW3) ...........................................................18
4.7 Setting of the Sub Clock Selector Jumper Plug (S1) .................................................18
4.8 Setting of the LVD2 Detection Voltage Selector Jumper Plug (S2) ...........................19
5. Product Specifications 20
5.1 General Specifications...............................................................................................20
5.2 Functional Explanation ..............................................................................................20
5.3 Clock Settings............................................................................................................22
5.4 Header Board Specifications .....................................................................................23
5.5 Connector Socket Specifications ...............................................................................24
5.6 Pin Assignment of Header Board I/F Connector........................................................25
Revision History 27

MB2146-301A-E F2MC-8FX Family for MB95FV100D-101 MCU Board Operation Guide, Doc. # 002-07496 Rev. *A 7
1. Product Outline
The MB2146-301A-E is the MCU board (model number: MB2146-301A-E) mounting an evaluation
MCU for the F2MC-8FX Family of Cypress 8-bit microcontrollers. The F2MC-8FX evaluation
environment, consists of a combination of three products: the header board, MCU board, and BGM
adapter (model number: MB2146-09A-E) as shown in Figure 1-1.
For more information please visit our following websites:
www.cypress.com/documentation/development-kitsboards/mb2146-301a-e
www.cypress.com/documentation/development-kitsboards/mb2146-09a-e
Figure 1-1. System configuration
MB2146-09
BGM adapter
MCU board
Header board

MB2146-301A-E F2MC-8FX Family for MB95FV100D-101 MCU Board Operation Guide, Doc. # 002-07496 Rev. *A 8
Product Outline
1.1 Product Configuration
Tables 1-1 lists the product configuration in the MCU board package. Table 1-2 lists optional parts for
the MCU board package that can be purchased separately.
Table 1-1. Product configuration
* : Neither the oscillator nor the capacitor is bundled with the MB2146-301A-E. Therefore, prepare them separately.
Table 1-2. Optional parts
*1: To use the BGM adapter, you need additional tools such as debugger software.
*2: The header board is an interface board to connect the MCU board to your user system. Choose and purchase a type of header board which
is applicable to the production MCU to be used.
Name Model number Description
F2MC-8FX MCU board* MB2146-301A-E MCU board with built-in MB95FV100D-101
Name Model number Description
BGM adapter*1MB2146-09A-E ICE unit for F2MC-8FX
Header board*2MB2146-2xx Connector/package conversion header board

MB2146-301A-E F2MC-8FX Family for MB95FV100D-101 MCU Board Operation Guide, Doc. # 002-07496 Rev. *A 9
Product Outline
1.2 Appearance and Part Name
The appearance of a MCU board and the part name are shown in Figure 1-2.
Figure 1-2. MCU board appearance figure
BGM
ADAPTER
SUB CLOCK
C B A
1
2
CLK CLK S.V. APB8 C X0 X1 X0A X1A
7
6
5
4
3
2
1
0
F
E
D
C
B
A
9
8
PRODUCT SELECT
LVD4 LVD3 LVD2 LVD1 LVD0
GNDVCC
3V
5V
LVD2OFFLVD1
MAIN CLOCK
1 2 3 4 1 2 3 4
ON ON
HEADER I/F CONNECTOR A HEADER I/F CONNECTOR B
* : Note used during debugging.
(1) LVD2 detection voltage selector jumper plug*
(2) Voltage selector switch
(3) Product selector switch
(4) LVD selector switch
(5) Clock selector switch (SW1-1: CLK)
Clock supervisor selector switch (SW1-2 : CLK S.V.)
APB8 bus output selector switch (SW1-3: APB8) (for extension) *
C-pin selector switch (SW1-4: C)
(6) Clock input selector switch (SW2-1: X0, SW2-2: X1, SW2-3: X0A, SW2-4: X1A)
(7) Sub clock crystal oscillator mounting socket
(8) Main clock crystal oscillator mounting socket
(9) Sub clock selector jumper plug
(10) BGM adapter connector
(11) Header board I/F connector A
(12) Header board I/F connector B
(13) Evaluation MCU (MB95FV100D-101)
(14) Incorrect insertion prevention guard
Top view Bottom view
(1)
(5)
(7)
(3)
(9)
(8)
(13)
(14)
(12)
(2)
(4)
(10)
(6)
(11)

MB2146-301A-E F2MC-8FX Family for MB95FV100D-101 MCU Board Operation Guide, Doc. # 002-07496 Rev. *A 9
2. Checking the Delivered Product
Before using the MCU board, confirm that the following components are included in the box:
■MCU board : 1
■Operation manual (English version, this manual) : 1
■Operation manual (Japanese version) : 1

MB2146-301A-E F2MC-8FX Family for MB95FV100D-101 MCU Board Operation Guide, Doc. # 002-07496 Rev. *A 10
3. Connections
3.1 Connecting the MCU board to the header board
Align the MCU board the header board facing each other, then plug their mating connectors
together. Those connectors are provided with incorrect insertion prevention guards located diago-
nally. Position the two boards so that the incorrect insertion prevention guards do not interfere with
each other and plug the connectors together completely (see “Figure 3-1”).
Figure 3-1. Connection of MCU board and header board
MCU board
Incorrect insertion
prevention guard Header board

MB2146-301A-E F2MC-8FX Family for MB95FV100D-101 MCU Board Operation Guide, Doc. # 002-07496 Rev. *A 11
Connections
3.2 Connecting the MCU board to the BGM adapter
Connect the BGM adapter to the MCU board. Plug the BGM adapter's interface connector
completely into the BGM adapter connector on the MCU board such that the index marks (▼)
aligned (see “Figure 3-2”).
Figure 3-2. Connection of MCU board and BGM adapter
MB2146-09
BGM
ADAPTER
SUB CLOCK
C B A
1 2
CLK
CLK S.V.
APB8
C
X0
X1
X0A
X1A
7
6
5
4
3
2
1
0
F
E
D
C
B
A
9
8
PRODUCT SELECT
LVD4
LVD3
LVD2
LVD1
LVD0
GND VCC
3V5V
LVD2OFFLVD1
MAIN CLOCK
1 2 3 4 1 2 3 4
ON ON
MCU board
Index mark
LVD2 detection voltage
selector jumper plug (S2) *
BGM adapter
BGM adapter connector (CN3)
* : Be sure to connect the BGM adapter correctly to the BGM adapter connector (CN3) on the MCU
board. It can damage the MCU board if it is accidentally connected to the LVD2 detection voltage
selector jumper plug (S2).

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Connections
3.3 Note on Connection
■Be sure to connect the BGM adapter connector (CN3). The BGM adapter connector and the
LVD2 detection voltage selector jumper plug have the same shape (see “Figure 3-3”). The MCU
board may break if the BGM adapter connector is accidentally plugged into the LVD2 detection
voltage selector jumper plug (S2) on the other side of the board.
Figure 3-3. Connection direction of BGM adapter
■To supply a main clock signal and sub clock signal from the user system, provide an oscillation
circuit on the user system so that it supplies the clock signal to the MCU board via a buffer circuit.
3.4 Disconnection
1. Remove the BGM adapter from the MCU board. Holding the MCU board firmly, pull the BGM
adapter vertically from the BGM adapter connector on the MCU board.
2. Remove the header board from the MCU board. Remove it with uniform force without applying
force to only one point.
MB2146-09
OK
MB2146-09
NG
BGM
ADAPTER
SUB CLOCK
C B A
1 2
CLK
CLK S.V.
APB8
C
X0
X1
X0A
X1A
7
6
5
4
3
2
1
0
F
E
D
C
B
A
9
8
PRODUCT SELECT
LVD4
LVD3
LVD2
LVD1
LVD0
GNDVCC
3V
5V
LVD2OFFLVD1
MAIN CLOCK
1 2 3 4 1 2 3 4
ON ON
BGM
ADAPTER
SUB CLOCK
C B A
1 2
CLK
CLK S.V.
APB8
C
X0
X1
X0A
X1A
7
6
5
4
3
2
1
0
F
E
D
C
B
A
9
8
PRODUCT SELECT
LVD4
LVD3
LVD2
LVD1
LVD0
GNDVCC
3V5V
LVD2OFFLVD1
MAIN CLOCK
1 2 3 4 1 2 3 4
ON ON

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4. How to Setup
4.1 How to the switch and jumper plug on a MCU board setup
Please set the following switches referring to “Figure 4-1 The switch and jumper plug on a MCU
board”.
1. Set the clock selector switch (SW1-1) to ON or OFF to disable or enable the sub clock,
respectively.
2. Set the clock supervisor selector switch (SW1-2) to OFF.
3. Set the C-pin selector switch (SW1-4) to OFF.
4. Set the clock input selector switch (SW2).
Check that value with “ Setting of the clock input selector switch (SW2)”.
5. Set the product selector switch (SW3) to the value corresponding to the number of pins on the
production MCU.
Check that value with “ Setting of the product selector switch (SW3)”.
6. Set the LVD selector switch (SW4) to OFF.
7. Set the power supply selector switch (SW5) to 3V.
8. Set the sub clock selector jumper plug (S1).
Check that value with “ Setting of the sub clock selector jumper plug (S1)”.
Please use with following settings, because APB8 bus and LVD2 functions are not available.
■Set the APB8 bus output selector switch (SW1-3) to OFF.
■Set the LVD2 detection voltage selector jumper plug (S2) to LVD0.
Check that value with “ Setting of the LVD2 detection voltage selector jumper plug (S2)”.
Figure 4-1. The switch and jumper plug on a MCU board
BGM
ADAPTER
SUB CLOCK
C B A
1
2
CLK CLK S.V. APB8 C X0 X1 X0A X1A
7
6
5
4
3
2
1
0
F
E
D
C
B
A
9
8
PRODUCT SELECT
LVD4
LVD3
LVD2
LVD1
LVD0
GND VCC
3V
5V
LVD2OFFLVD1
MAIN CLOCK
1 2 3 4 1 2 3 4
ON ON
SW5
SW3
SW1 SW2
S1
SC5 SC6
SC4
SC3 SC2
SC1
S2
SW4

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How to Setup
4.2 How to Oscillator Mounting on a MCU board
Mount a crystal or ceramic oscillator in the crystal oscillator mounting sockets (for the main clock and
sub clock) on the MCU board.
The MCU board has one crystal oscillator mounting socket for the main clock and the other for the
sub clock. To distinguish them from each other, the board has the “MAIN CLOCK” and “SUB
CLOCK” labels are printed on the board near the main clock socket and sub clock socket. Mount the
crystal or ceramic oscillator along with the capacitors on the MCU board (see “Figure 4-2”).
Figure 4-2. The example of mount of crystal or ceramic oscillator
4.3 Handling Notes
■Data can not be written/erased to lower banks (1000Hto 3FFFH) in the software development
support environment for the F2MC-8FX (MB95FV100D and MB2146-09A-E).
■Do not perform a chip erase when using the software development support environment for the
F2MC-8FX (MB95FV100D and MB2146-09A-E).
Ceramic oscillator Crystal oscillator
Capacitor mounting socket
Crystal oscillator
mounting socket
GND
Capacitor mounting socket
■For information on the crystal oscillator such as its frequency, refer to the datasheet
for the evaluation MCU.
■For the capacitance of the capacitor, refer to the datasheet for the crystal oscillator,
etc.
■Neither the crystal oscillator nor the capacitor is bundled with this product.

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How to Setup
4.4 Setting of the Switch and Jumper Plug
The positions of the switch and jumper plug on the MCU board is shown in Figure 4-3, and
specifications are shown in Table 4-1.
Figure 4-3. Positions of switches and jumper plugs on the MCU board
Table 4-1. Switch and jumper plug settings
Switch/Jumper plug Settings Shipment
setting
Clock selector
switch SW1-1 ON : Disable the sub clock
OFF : Enable the sub clock OFF
Clock supervisor
selector switch SW1-2 ON : Enable the clock supervisor function
OFF : Disable the clock supervisor function OFF
APB8 bus output
selector switch SW1-3 ON : Enable the APB8 bus
OFF : Disable the APB8 bus OFF
C-pin selector
switch SW1-4
ON : Connect the C pin to the 0.1F capacitor on the MCU board
OFF : Disconnect the C pin from the 0.1F capacitor on the MCU
board
OFF
Clock input selector
switch SW2
Select the main clock and sub clock source on the MCU board or
on the user system (See “Setting of the clock input selector switch
(SW2)”).
OFF
Product selector
switch SW3 Set this switch depending on the number of pins on the target MCU to be used (See “Setting of the product selector switch (SW3)”). 0
BGM
ADAPTER
SUB CLOCK
C B A
1
2
CLK CLK S.V. APB8 C X0 X1 X0A X1A
7
6
5
4
3
2
1
0
F
E
D
C
B
A
9
8
PRODUCT SELECT
LVD4 LVD3 LVD2 LVD1 LVD0
GNDVCC
3V
5V
LVD2OFFLVD1
MAIN CLOCK
1 2 3 4 1 2 3 4
ON ON
SW5
SW3
SW1 SW2
S1
SC5 SC6
SC4
SC3 SC2
SC1
S2
LVD4 LVD3 LVD2 LVD1 LVD0
SW4

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How to Setup
4.5 Setting of the Clock Input Selector Switch (SW2)
Figure 4-4 shows the clock input selector switch. Table 4-2 lists switch positions for the main clock
supply source. Table 4-3 lists switch positions for the sub clock supply source.
Figure 4-4. Clock input selector switch (SW2)
Table 4-2. Setting of main clock supply source
Table 4-3. Setting of the sub clock supply source
LVD selector switch SW4
Select the low-voltage detection function.
LVD1 : LVD1 enabled
OFF : LVD function disabled
LVD2 : LVD2 enabled
OFF
Voltage selector
switch SW5
Select 5V or 3V supply for the operating voltage of the evaluation
MCU.
5V : 5V supply
3V : 3V supply
3V
Sub clock selector
jumper plug S1 Select whether to use the sub clock.
(See “Setting of the sub clock selector jumper plug (S1)”).
Jumper of
B-C
LVD2 detection
voltage selector
jumper plug
S2 Set the LVD2 detection voltage (See “Setting of the LVD2 detection
voltage selector jumper plug (S2)”). LVD0
Main clock supply source Settings of the clock input selector switch
SW2-1 SW2-2
Clock area OFF OFF
User system ON ON
Sub clock supply source Settings of the clock input selector switch
SW2-3 SW2-4
Clock area OFF OFF
User system ON ON
Switch/Jumper plug Settings Shipment
setting
X0 X1
X0A
X1A
1 2 3 4
ON

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How to Setup
4.6 Setting of the Product Selector Switch (SW3)
Table 4-4 lists the setting of product selector switch and product type.
Table 4-4. Setting of the product selector switch
4.7 Setting of the Sub Clock Selector Jumper Plug (S1)
Table 4-5 lists jumper plug positions and sub clock selection. Figure 4-5 shows examples of sub
clock selection.
Table 4-5. Setting of sub clock selector
* : Oscillation is not guaranteed when the crystal oscillator is mounted on the user system.
Figure 4-5. The example of sub clock selection
Switch setting Product type
0 100-pin package type
1 80-pin package type
2 64-pin package type
3 48-pin, 52-pin package type
4 32-pin package type
5 28-pin package type
6 20-pin package type
7 Setting Prohibited
8 100-pin package, LCD function integrated type
9 80-pin package, LCD function integrated type
A 64-pin package, LCD function integrated type
B 48-pin, 52-pin package, LCD function integrated type
C
Setting Prohibited
D
E
F
Sub clock Settings of the sub clock
selector jumper plug (S1) Example of
settings
Used Supply
source
M1 correspondence
pin X0A X1A
enable Clock area X0A : R3 pin
X1A : V1 pin
Jumper of 1: B - 1:
C
Jumper of 2: B - 2:
CExample 1
User system* Jumper of 1: A - 1:
B
Jumper of 2: A - 2:
BExample 2
disable —
C B A
1
2
C B A
1
2
Example 1 Example 2

MB2146-301A-E F2MC-8FX Family for MB95FV100D-101 MCU Board Operation Guide, Doc. # 002-07496 Rev. *A 18
How to Setup
4.8 Setting of the LVD2 Detection Voltage Selector Jumper Plug (S2)
Figure 4-6 shows the setting of the LVD2 detection voltage selector jumper plug (S2). Table 4-6 lists
jumper plug positions for detection voltages.
These settings cannot be used during debugging. Set the jumper to LVD0 to use the debugger.
Figure 4-6. The LVD2 detection voltage selector jumper plug (S2)
Table 4-6. Setting of the LVD2 detection voltage selector jumper plug
Jumper plug position LVD2 setting value
LVD0 + 4.17V
LVD1 + 3.74V
LVD2 + 3.3V
LVD3 + 2.9V
LVD4 + 2.6V
LVD4 LVD3 LVD2 LVD1 LVD0