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All other brand names and product names are registered trademarks or trademarks of the respective pr o prietors.
• Renesas is constantly making efforts to improve the quality and reliabilit y of its products. Ho wever, not
all semiconductor products are trouble-free, they may become fault y or operate erratically. To ensure
that no accidents such as injury or a fire or no social damage may arise from Renesas semiconductor
products should they become faulty or operate erratically, please pay careful attention to the safety
design of your system by, for example, considering redundanc y design and incorporating measures to
check the spread of a fire and prevent device malfunction.
• This manual only provides reference information to help customers purchase the appropriate type of
Renesas Technology product that suits the intended purpose of use, and the technical information
contained herein does not implicitly or otherwise grant a l icense or rights to use th e intellectual propert y or
other rights of Renesas Technology.
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parties’ rights arising from the use of product data, diagrams, tables, programs, algorithms or example
application circuits presented in this manual.
• The product data, diagrams, tables, programs, algorithms and all other information presented herein re flect
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Technology will not assume responsibility for losses that the customers by any possibility may suffer
because of erroneous description in this manual.
• To use the technical contents in product data, diagrams or tables or the programs or algorithms presented
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• The products presented herein are not designed or manufactured for use in equipment or systems that are
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Requests for Safety Design
Precautions on Using This Manual
Revision History SH7125 CPU Board M3A-HS25User's Manual
1.8 Absolute Maximum Ratings........................................................................................................................................ 1-9
2.3 Serial Port Interface.................................................................................................................................................... 2-4
3.1.2 Serial Port Connector (J2)................................................................................................................................. 3-4
3.1.3 Power Supply Connector (J3) ........................................................................................................................... 3-5
3.1.4 External Power Supply Connectors (J4)............................................................................................................3-6
3.2 User Through-hole ................................................................................................................................................... 3-11
3.3 Outline of Operational Components ......................................................................................................................... 3-12
3.3.1 SH7125 Power Supply Select Jumper (JP1)...................................................................................................3-13
3.3.3 Serial Port Select Jumpers (JP3,JP4).............................................................................................................3-15
3.3.4 Switch and LED Functions.............................................................................................................................. 3-16
3.4 Package Dimensions of M3A-HS25......................................................................................................................... 3-18
The M3A-HS25 is the CPU board designed for users to evaluate the functionalit y and performance of the SH7125
group of Renesas Technology original microcomputers, as well as develop an d evaluate the application software for
this group of microcomputers. The SH7125's internal peripheral circuit function pins are connected to the extension
connector of the M3A-HS25, allowing users to evaluate the timing relationship with peripheral devices using
measurement instruments or develop extension boards tailored to suit development purposes. Furthermore, the
E10A-USB or the on-chip emulator made by Renesas Technology can also be connected to the M3A-HS25.
1.2 Configuration
Figure1.2.1 shows an example of system configuration using the M3A-HS25.
Overview
SH7125 CPU board
M3A-HS25
Extension
Board
*Can be created
according to ap
High-performance
Embeded Workshop(HEW)
SuperH RISC engine
C/C++ compiler package
* :It is necessary to buy separately for software development
plications
Extension
Connector
*
*
Figure1.2.1 Example System Configuration of the M3A-HS25
SH7125
Computer
HEW
debugger
Host
H-UDI Connector (14-pin)
USB
*
5V DV
Power Supply
(1.5A min.)
Serial Port
Connector
E10A-USB
*
*
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1.3 External Specifications
Table1.3.1 lists external specifications of M3A-HS25.
Table1.3.1 External Specifications of M3A-HS25
No. Item Content
SH7125
• Input(XIN) clock : 12.5MHz
• CPU clock : 50MHz, max
1 CPU
2 Connectors
3 LED
4 Switches
5 User through-hole • User through-hole (12 x 8pc.)
6 External dimensions
• Peripheral clock : 25MHz, max
• On-chip memory
Flash memory : 128KB
RAM : 8KB
• Extension connector
• Serial Port connector (D-sub 9pins)
• H-UDI connector (14pins)
• POWER LED (1pc.)
• User LED (6pcs.)
• Reset switch (1pc.)
• NMI switch (1pc.)
• IRQ0 switch (1pc.)
• DIP switch for System setting (1pc.,3 poles)
• DIP switch for users (1pc.,4 poles)
• Dimensions : 100mm x 100mm
• Mounting form : 4-layer, double-side mounted
• Board configuration : 1 board
Overview
1.3 External Specifications
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1.4 External View
Figure1.4.1 shows the external view of M3A-HS25.
Overview
1.4 External View
Figure1.4.1 External View of M3A-HS25
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1
1.5 M3A-HS25 Block Diagram
Figure1.5.1 shows the system block diagram of M3A-HS25.
Overview
1.5 M3A-HS25 Block Diagram
User
Trough-hole area
(12×8pc.)
SH7125 CPU board
M3A-HS25
Extension Connector
(Common use for
48 pins version)
H-UDI connector
(14-pin)
H-UDI
SCI0 or SCI1
SH7125
(50MHz)
Extension Connector
(Exclusive use for
ns version)
64 pi
Figure1.5.1 System Block Diagram of M3A-HS25
Serial Port Connector
XIN(12.5MHz)
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1.6 M3A-HS25 Board Overview
Figure1.6.1 shows the M3A-HS25 board overview.
Overview
1.6 M3A-HS25 Board Overview
<Top view of the component side >
UH1
User through-hole(12×8)
J7
Extension
Connector *
LED2-7
User LED
SW2
Reset Switch
U3
JP2
FWE Pin
Select
Jumper
U4
JP1
Power Supply
Select Jumper
X1
U1
SH7125
J3
Power Supply
Connector
SW1
Power Switch
U2
J4
External Power
Supply Connector *
LED1
Power LED
SW4
DIP switch for
System Setting
J2
Serial Port
Connector
J1
H-UDI
Connector
<Top view of the solder side >
SW3
DIP Switch
JP3,JP4
Serial Port
Select Jumper
SW5
NMI Switch
SW6
IRQ0 Switch
J5
Extension Connector *
J6
Extension Co
nnector *
Note *: Not mounted
Figure1.6.1 M3A-HS25 Board Overview
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1
Table1.6.1 lists main components mounted in M3A-HS25.
Table1.6.1 Main Components Mounted in M3A-HS25
Symbol Parts Name Remarks
U1 CPU SH7125 (Renesas)
U1 CPU Socket NQPACK064SD
U2 RS-232C Driver
U3 Reset IC M51957BFP (Renesas)
U4 Logic IC
U5 Logic IC
X1 Oscillator 12.5MHz
X2 Ceramic Resonator Not mounted CSTCE-G12M5 (Murata)
J1 H-UDI Connector
J2 Serial Port Connector
J3 Power Supply Connector
J4 External Power Supply Connector Not mounted A2-2PA-2.54DSA (Hirose)
J5, J6 Extension Connector Not mounted XG4C-4031 (Omron)
J7 Extension Connector Not mounted
LED1 Power LED Blue
LED2 to 7 User LED Green
SW1 Power Switch
SW2 Reset Switch
SW3 DIP Switch for user
SW4 DIP Switch for system setting
SW5 NMI Switch
SW6 IRQ0 Switch
1.6 M3A-HS25 Board Overview
Parts number for
recommended components
that are not mounted
7614-6002 (Sumitomo 3M)
Overview
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1.7 M3A-HS25 Memory Mapping
Figure1.7.1 show a memory mapping example of SH7125 in the M3A-HS25.
Logical space of the SH7125
MCU mode 3
(Single Chip mode)
H’0000 0000
Overview
1.7 M3A-HS25 Memory Mapping
Memory Mapping
of the M3A-HS25
H’0000 0000
H’0001 FFFF
H’0002 0000
On-chip ROM
(128KB)
Reserved
On-chip ROM
(128KB)
H’0001 FFFF
H’0002 0000
Reserved
H’FFFF 9FFF
H’FFFF A000
On-chip RAM
(8KB)
H’FFFF BFFF
H’FFFF C000
On-chip Peripheral Module
H’FFFF FFFF
Figure1.7.1 Memory Mapping Example of SH7125 (MCU mode 3)
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REJ10J0952-0100
H’FFFF 9FFF
H’FFFF A000
H’FFFF BFFF
H’FFFF C000
H’FFFF FFFF
On-chip RAM
(8KB)
On-chip Peripheral Module
1
1.8 Absolute Maximum Ratings
1.8 Absolute Maximum Ratings
Table1.8.1 lists the absolute maximum ratings of M3A-HS25.
Table1.8.1 Absolute Maximum Ratings of M3A-HS25
Symbol Parameter Rated Value Remarks
VCC 5V System Power Supply Voltage -0.3V to 6.0V Relative to VSS
Topr Operating Ambient Temperature -5°C to 55°C No dewdrops allowed.
Use in corrosive gas environment prohibited.
Tstr Storage Ambient Temperature -10°C to 60°C No dewdrops allowed.
Use in corrosive gas environment prohibited.
Note: The ambient temperature refers to the air temperature in places closest possible to the board.
1.9 Recommended Operating Conditions
Table1.9.1 lists recommended operating conditions of M3A-HS25.
Overview
Table1.9.1 Recommended Operating Conditions of M3A-HS25
Symbol Parameter Rated Value Remarks
VCC 5V System Power Supply Voltage 4.75V to 5.25V Relative to VSS
— Maximum Current Consumption in the BoardWithin 1A
Topr Operating Ambient Temperature 0°C to 50°C No dewdrops allowed.
Use in corrosive gas environment prohibited.
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Overview
1.8 Absolute Maximum Ratings
* This is a blank page *
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Chapter2Functional Overview
Chapter2
Functional Overview
2-1
2
2.1 Functional Overview
The M3A-HS25 is the SH7125 CPU board that has functions listed in
Table2.1.1 lists functional modules of M3A-HS25.
Table2.1.1 Functional Modules of M3A-HS25
Section Function Content
Table2.1.1.
Functional Overview
2.1 Functional Overview
2.2CPU
SH7125
• Input(XIN) clock : 12.5MHz
• CPU clock : 50MHz, max
• On-chip Memory
- Flash memory : 128KB
- RAM : 8KB
2.3 Serial Port Interface Connects SCI0 or SCI1 of the SH7125 to the UART connector
2.4 Input/Output Ports Connects to the I/O ports of the SH7125
2.5 Clock Module Controls the system clock
2.6 Reset Module Controls device reset accommodated by the M3A-HS25
- Operational specifications Connectors, switches and LEDs
• SH7125 extension connector
• Switches and LEDs
• H-UDI connector
Detailed in Chapter 3.
Rev.1.0 July 21, 2006 2-2
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Functional Overview
2
2.2 CPU
The M3A-HS25 contains the 32-bit RISC microcomputer SH7125 that operates with a maximum 50MHz of CPU
clock frequency. The SH7125 includes 128-Kbyte flash memory, and 8-Kbyte SRAM, making it useful in a wide range
of applications from data processing to equipment control.
The M3A-HS25 can be operated with a maximum 50MHz of CPU clock frequency using a 12.5MHz input clock.
Figure2.2.1 shows the block diagram of SH7125 in the M3A-HS25.
The SH7125 included in the M3A-HS25 contains a UART module. In the M3A-HS25, the pins of SCI channel 0 or
SCI channel 1 can be connected to J2 (Serial Port connector). The pins of SCI channel 1 (RXD1(PA3) pin and TXD 1
(PA4)pin) are also connected to H-UDI connector, and extension connector (J5, J7). Switch the setting of the JP3 and
JP4 according to the connector used.
Figure2.3.1 shows the block diagram of serial port interface in the M3A-HS25.
Serial Port
connector (J2)
1
DCD
2
RxD
3
TxD
4
DTR
5
GND
6
DSR
7
RTS
8
CTS
9
RI
SH7125
RXD0(PE1)
RXD1(PA3)
TXD0(PE2)
TXD1(PA4)
JP4
1
3
JP3
1
3
RS-232C
driver
NC
2
2
GND
H-UDI
connector(J1)
NC
Extension
connector(J5)
Extension
connector(J7)
Figure2.3.1 Block Diagram of Serial Port Interface
Rev.1.0 July 21, 2006 2-4
REJ10J0952-0100
Functional Overview
2
2.4 I/O Ports
In the M3A-HS25, all of the SH7125's I/O ports are connected to the extension connector. Some I/O ports are
connected to DIP switches and LEDs of the M3A-HS25 board. Users are free to use these ports.
Figure2.4.1 shows the block diagram of DIP switch and LEDs in the M3A-H25.
Table2.4.1 shows functions of SH7125 I/O ports in the M3A-HS25.
H-UDI Connector(J1), Extension Connector (J5,J7), Serial Port Select
Jumper(JP4)
Jumper (JP3)
__________
__________
_____________
__________
__________
/TIC5V DIP Switch (SW3), Extension Connector (J5)
___________
______________
H-UDI Connector (J1) , Extension Connector (J5)
Extension Connector (J6)
DIP Switch (SW3), Extension Connector (J6)
Extension Connector (J6)
User LED(LED5), Extension Connector (J5)
User LED(LED7), Extension Connector (J5)
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2
2.5 Clock Module
The clock module in the M3A-HS25 consists of the following two blocks:
•
Output from a oscillator connected to EXTAL of the SH7125
Ceramic resonator connected to EXTAL and XTAL
•
The M3A-HS25 has a 12.5MHz oscillator connected to it as standard specification.
Figure2.5.1 shows the block diagram of clock module.
Oscillator
CLK
R21
*
EXTAL
XTAL
Ceramic Resonators
12.5MHz
Functional Overview
2.5 Clock Module
SH7125
*:To mount the ceramic oscillator, remove R21.
: Not mounted
Figure2.5.1 Block Diagram of Clock Module
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2
2.6 Reset Module
This module controls the reset signal connected to the SH7125 mounted on the M3A-HS25.
Figure2.6.1 shows the block diagram of reset module in the M3A-HS25.
Reset IC output delay time:td = 0.34 × Cd(pF)usec = 34ms
Reset IC output detection voltage:Vs = 1.25 × (Ra +Rb)/Rb = 3 .75 V
H-UDI connector(J1)
RES
Extension
connector(J7)
Cd
Vcc
0.1uF
Reset Switch
SW2
Ra
Rb
Vcc
Open-collector output
Reset IC
20KΩ
M51957BP
Input Output
10KΩ
Delay capacitance
Figure2.6.1 Block Diagram of Reset Module
Functional Overview
2.6 Reset Module
Extension connector(J5)
RESET
SH7125
RES
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2.7 Interrupt Switches
In the M3A-HS25, the switch is connected with the IRQ0 pin and NMI pin of the SH7125.
Figure2.7.1 shows the interrupt block diagram in the M3A-HS25.
VCC
Functional Overview
2.7 Interrupt Switches
SH7125
SW5
NMI switch
VCC
SW6
IRQ0 switch
Figure2.7.1 Interrupt Block Diagram
NMI
PA2/IRQ0/SCK0
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Functional Overview
2
2.8 E10A-USB Interface
2.8 E10A-USB Interface
The M3A-HS25 has a 14-pin H-UDI connector included in it for connection to the E10A-USB.
TMS pins and TRST pins of SH7125 are multiplexed with transmit/receive pins of SCI channel 1. When H-UDI
connector is used, make sure that the settings of JP3 and JP4 are set to 1-2 side.
In addition, H-UDI pin of SH7125 is connected to the extension connector, do not use the applicable pins of the
extension connector when debugging with the H-UDI connector.
Figure2.8.1 shows the block diagram of E10A-USB interface.
Vcc
Vcc
H-UDI connector
10
12
13
14
8
9
N.C.
(GND)
GND
ASEBRKAK/ASEBRK
GND
GND
GND
Reset Signal
(J1)
UVCC
TCK
TRST
TDO
TMS
TDI
RES
11
1
2
3
4
5
6
7
JP2
1
3
2
TCK/PA7/TCLKB/SCK2
TRST/PA3/IRQ1/RXD1
TDO/PA9/TCLKD/TXD2/POE8
ASEBRKAK/ASEBRK/FWE
TMS/PA4/IRQ2/TXD1
TDI/PA8/TCLKC/RXD2
RES
ASEMODE0
SH7125
Extension
Connector (J7)
SW4-1
Vcc
Serial Port
Connector (J2)
JP3
2
JP4
2
1
3
1
3
PE2/TIOC0C/TXD0
PE1/TIOC0B/RXD0
Figure2.8.1 Block Diagram of E10A-USB Interface
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Chapter3Operational Specifications
Chapter3
Operational Specifications
3-1
3
3.1 M3A-HS25 Connectors Outline
Figure3.1.1 shows the M3A-HS25 connector assignments.
<Top view of the component side >
J7
Extension
connector
(Not mounted)
J3
Power Supply
connector
Operational Specifications
3.1 M3A-HS25 Connectors Outline
J4
External Power
Supply Connector
(Not mounted)
J2
Serial Port
Connector
< Top view of the solder side >
J1
H-UDI
Connector
J5
Extension Connector
(Not mounted)
J6
Extension Connector
(Not mounted)
Figure3.1.1 M3A-HS25 Connector Assignments
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Operational Specifications
3
3.1.1 H-UDI Connector (J1)
M3A-HS25 has the 14-pin H-UDI (J1) connector included in it for connection to the E10A-USB emulator.
Figure3.1.2 shows a pin assignment of H-UDI (J1) connector.
3.1.1 H-UDI Connector (J1)
Board
edge
Board
edge
714613512411310291
8
J1
Top view of the
component side
Side view
Figure3.1.2 Pin Assignment of H-UDI (J1) Connector
Table 3.1.1 lists pin assignments of H-UDI connector (J1).
Table 3.1.1 Pin Assignments of H-UDI (J1) Connector
Pin Signal Name Pin Signal Name
1
2
3
4
5
6
7
TCK
_________
TRST
TDO
___________________
ASEBRKAK
TMS
TDI
_______
RES
______________
/ASEBRK
8
9
10
11
12
13
14
NC
_______________
ASEMD0
GND
UVCC
GND
GND
GND
Note: Please note that how to count the pin number is different from its method for the connector manufacturer.
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3
3.1.2 Serial Port Connector (J2)
The M3A-HS25 includes a serial port connector (J2) for serial communication.
Figure 3.1.3 shows a pin assignment of serial port connector.
1
Operational Specifications
3.1.2 Serial Port Connector (J2)
5
6
Board edge
1
Board edge
6
Figure 3.1.3 Pin Assignment of Serial Port Connector (J2)
Table 3.1.2 lists pin assignments of serial port connector.
Table 3.1.2 Pin Assignments of Serial Port Connector (J2)
Pin Signal Name Pin Signal Name
1 NC 6 DSR
2 RXD 7 RTS
3 TXD 8 CTS
_______
4 DTR
5 GND
Pins 4-6 are loopback-connected. Pins 7-8 are loopback-connected.
9
Top view of the
component side
5
9
_______
_______
_______
9 NC
Side view
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3
3.1.3 Power Supply Connector (J3)
The M3A-HS25 includes a power supply connector for the board itself.
Figure 3.1.4 shows a pin assignment of power supply connector.
12
Board edge
Operational Specifications
3.1.3 Power Supply Connector (J3)
Top view of the
component side
12
Board edge
Figure 3.1.4 Pin Assignment of Power Supply Connector (J3)
Table 3.1.3 lists a pin assignment of power supply connector for the M3A-HS25.
Table 3.1.3Pin Assignment of Power Supply Connector (J3)
Pin Signal Name PinSignal Name
1 +5V 2 GND
Side view
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3.1.4 External Power Supply Connectors (J4)
3.1.4 External Power Supply Connectors (J4)
The M3A-HS25 includes external power supply connectors for the SH7125.
Figure3.1.5 shows a pin assignment of power supply connector.
12
J4
VCC
Figure3.1.5 Pin Assignment of Power Supply Connector (J4)
Table 3.1.4 lists pin assignments of power supply connector for the SH7125.
Table 3.1.4 Pin Assignment of Power Supply Connector (J4)
Pin Signal Name PinSignal Name
Top view of the
component side
Board
edge
Operational Specifications
1 +5V 2 GND
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Operational Specifications
3
3.1.5 Extension Connectors (J5,J6)
The M3A-HS25 includes extension connectors to which the I/O pins of the SH7125 are connected.
MIL Standard connectors can be connected to J5 and J6, allowing the user to create an extension board or to
monitor the I/O, etc.
In addition, pins of SH7124 (48-pin version) is arranged in the extension connector (J5), so it is possible to be used
for a brief evaluation.
Figure 3.1.6 shows a pin assignment of the extension connector(J5,J6).
<Top view of solder side>
40
39
3.1.5 Extension Connectors (J5,J6)
2
1
J5
Extension connector
J6
40
39
Figure 3.1.6 Pin Assignment of Extension Connectors (J5, J6)
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REJ10J0952-0100
2
1
Extension connector
3
_
_
_
_
_
_
_
_
Table 3.1.5 shows pin assignments of extension connector (J5).
Table 3.1.5 Pin Assignments of extension connector (J5)
Extension connector(J7) connects the pins necessary for writing a on-chip flash memory of SH7125.
Figure 3.1.7 shows pin assignments of the extension connectors.
Board
Top view of the
component side
13
14
11
12
9
10
7
8
5
6
3
4
1
2
edge
J7
Operational Specifications
3.1.6 Extension Connector (J7)
Board
edge
Figure 3.1.7 Pin assignments of the Extension Connector (J7)
Table 3.1.7 lists pin assignments of the extension connector(J7).
Table 3.1.7 Pin assignments of the extension connector (J7)
Pin
Signal name Other connection
J7
PA5/IRQ3/SCK1 Extension connector (J6)
1
GND -
2
NC -
3
MD1 DIP switch for system setting (SW4-2)
4
PA4/IRQ2/TXD1/TMS
5
NC -
6
7
8
9
10
11
12
13
14
FWE/
______________
ASEBRK
___________________
ASEBRKAK
VCC PA6/TCLKA Extension connector (J5)
NC -
PA3/IRQ1/RXD1/
NC -
____________
RESET
_________
TRST
GND -
H-UDI connector (J1), Serial Port Select Jumper (JP3), Extension
connector (J5)
*
DIP switch for system setting (SW4-1)
H-UDI connector (J1), Serial Port Select Jumper (JP4), Extension
connector (J5)
Reset module
Note *: When FWE pin select jumper (JP2) is set to “2-3”, it is activated.
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Operational Specifications
3
3.2 User Through-hole
M3A-HS25 has the user trough-holes (12 x 8pc.)
The user trough-holes are not connected to VCC, GND and signal lines, so users are free to use them.
Figure 3.2.1 shows pin assignments of the user trough-hole.
Board
Top view of the
component side
12345678
edge
3.2 User Through-hole
A
B
C
D
E
F
G
H
J
K
L
M
UH1
Board
edge
Figure 3.2.1 Pin assignments of the user trough-hole
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3.3 Outline of Operational Components
The M3A-HS25 includes switches, jumpers and LEDs as its operational components.
Figure 3.3.1 shows the M3A-H25 operational component assignment.
The JP1 allows the sources for the SH7125 power supply voltages to be selected.
Figure 3.3.2 shows the SH7125 power supply voltage select jumper (JP1) assignment.
Table 3.3.1 lists jumper setting for selecting SH7125 power supply voltage (JP1).
Top view of the
component side
Board
edge
3
JP1 PWRSEL
1
Operational Specifications
Board
edge
Figure 3.3.2 SH7125 Power Supply Voltage Select Jumper (JP1) Assignment
Table 3.3.1 Jumper Setting for Selecting SH7125 Power Supply Voltage (JP1)
Jumper Setting Function
JP1
PWRSEL
: Initial Setting
Note : Do not change jumper settings while the operation of M3A-HS25. Ensure to turn off the power for the
M3A-HS25 before changing jumper settings.
1 - 2
2 - 3
5V fixed power supply voltage
External power supply voltage (supplied from J4)
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3.3.2 FWE Pin Select Jumper (JP2)
The JP2 allows the connection for the FWE/ASEBRK
Figure 3.3.3 shows the FWE pin select jumper (JP2) assignment.
Table 3.3.2 lists the jumper setting for selecting FWE pin (JP2).
Table 3.3.2 Jumper Setting for Selecting FWE pin (JP2)
Jumper Setting Function
1 - 2 The FWE pin of SH7125 is connected with H-UDI connector (J1). JP2
FWESEL
2 - 3 The FWE pin of SH7125 is connected with DIP switch (SW4-1).
: Initial Setting
Note : Do not change jumper settings while the operation of M3A-HS25. Ensure to turn off the power for the
M3A-HS25 before changing jumper settings.
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Operational Specifications
3
3.3.3 Serial Port Select Jumpers (JP3,JP4)
By setting the JP3 and JP4, the serial port of SH7125 connected to the serial port connector (J2) can be selected.
Figure 3.3.4 shows the Serial port select jumper assignment.
Table 3.3.3 and Table 3.3.4 list the jumper setting for selecting Serial port (JP3, JP4).
Top view of the
component side
Board
edge
3
3
JP3 TxD SEL
JP4 RxD SEL
1
1
3.3.3 Serial Port Select Jumpers (JP3,JP4)
Board
edge
Figure 3.3.4 Serial Port Select Jumper (JP3, JP4) Assignment
Table 3.3.3 Jumper Setting for Selecting Serial Port (JP3)
Jumper Setting Function
JP3
TXD1 SEL
1 - 2
The
PE2/TIOC0C/TXD0
(J2).
pin of SH7125 is connected with serial port connector
2 - 3 The PA4/TMS/TXD1 pin of SH7125 is connected with serial port connector (J2).
: Initial Setting
Table 3.3.4 Jumper Setting for Selecting Serial Port (JP4)
Jumper Setting Function
JP4
RXD1 SEL
The
1 - 2
PE1/TIOC0B/RXD0
(J2).
2 - 3 The PA3/TRST/RXD1 pin of SH7125 is connected with serial port connector
pin of SH7125 is connected with serial port connector
(J2).
: Initial Setting
Note : Do not change jumper settings while the operation of M3A-HS25. Ensure to turn off the power for the
M3A-HS25 before changing jumper settings.
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Operational Specifications
3
3.3.4 Switch and LED Functions
The M3A-HS25 includes six switches and seven LEDs.
Table 3.3.5 lists switches mounted on M3A-HS25.
Table 3.3.5Switches Mounted on M3A-HS25
No. Function Remarks
SW1 System power on/off switch SW2 System reset input switch ref. section 2.6
SW3 DIP switch for users
SW3-1 OFF : PB1=H, ON : PB1=L
SW3-2 OFF : PB2=H, ON : PB2=L
SW3-3 OFF : PB3=H, ON : PB3=L
SW3-4 OFF : PB5=H, ON : PB5=L
SW4 DIP switch for CPU mode setting ref.
SW5 NMI input switch ref. section 2.7
SW6 IRQ0 input switch ref. section 2.7
Table 3.3.6 lists functions of switch SW4.
SH7125 operating mode is determined by the setting of the MD1 and FWE pins. Table 3.3.7 lists the selection of
SH7125 operating modes.
Table 3.3.6 Functions of Switch SW4
No. Setting Function
OFF FWE=H (Releasing the writing/erasing protects of on-chip flash memory) SW4-1
FWE
MD1
TP
: Initial Setting
Note: The setting of SW4-1 is activated only when the FWE pin select jumper (JP2) is set to “2-3”.
SW4-1
FWE
ON ON - Setting prohibited
ON OFF Mode3 Single chip mode
OFF ON Mode4 Boot mode*
OFF OFF Mode6 User Programming mode*
: Initial Setting
Note* “Boot mode” and “User Programming mode” mean the programming mode of on-chip flash memory.
ON FWE=L (Setting the writing erasing protects of on-chip flash memory)
OFF MD1 pin state “H” SW4-2
ON MD1 pin state “L”
OFF Test pin (H8) “H” SW4-3
ON Test pin (H8) “L”
Table 3.3.7 Selection of SH7125 operating modes
SW4-2
MD1
Operating modeMode name
PB1, PB2, PB3 and PB5 are pulled up.
ref. section 2.4
Table 3.3.6
SH7125 Operating mode
3.3.4 Switch and LED Functions
Operating mode
(ref.
Table 3.3.7
setting
)
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Table 3.3.8 lists functions of LEDs mounted in M3A-HS25.
Table 3.3.8 Functions of LEDs Mounted in M3A-HS25
No. Color
LED1 Blue Power-on LED (LED1 lights when power is supplied)
LED2 Green Open to the user (LED2 lights when PE9 outputs “L”)
LED3 Green Open to the user (LED3 lights when PE11 outputs “L”)
LED4 Green Open to the user (LED4 lights when PE12 outputs “L”)
LED5 Green Open to the user (LED5 lights when PE13 outputs “L”)
LED6 Green Open to the user (LED6 lights when PE14 outputs “L”)
LED7 Green Open to the user (LED7 lights when PE15 outputs “L”)
Functions/Remarks
Operational Specifications
3.3.4 Switch and LED Functions
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3.4 Package Dimensions of M3A-HS25
Figure 3.4.1 shows package dimensions of M3A-HS25.
<Top view of the component side >
Operational Specifications
3.4 Package Dimensions of M3A-HS25
Figure 3.4.1 Package Dimensions of M3A-HS25
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Appendix
M3A-HS25 SCHEMATICS
A-1
* This is a blank page *
A-2
1
2
3
4
5
SH7125 CPU BOARD M3A-HS25 SCHEMATICS
AA
TITLE
INDEX
CPU SH7125
UDI/RESET/UART/POWER
CONNECTORS/PUSH SW
BB
OTHERS
PAGE
1
2
3
4
5
Note:
VCC = 5V
CC
R = Fixed Resistors
RA = Resistor Array
C = Ceramic Caps
CE = Tantalum Electrolytic Caps
CP = Decoupling Caps