1. This document is provided for reference purposes only so that Renesas customers may select the appropriate
Renesas products for their use. Renesas neither makes warranties or representations with respect to the
accuracy or completeness of the information contained in this document nor grants any license to any
intellectual property rights or any other rights of Renesas or any third party with respect to the information in
this document.
2. Renesas shall have no liability for damages or infringement of any intellectual property or other rights arising
out of the use of any information in this document, including, but not limited to, product data, diagrams, charts,
programs, algorithms, and application circuit examples.
3. You should not use the products or the technology described in this document for the purpose of military
applications such as the development of weapons of mass destruction or for the purpose of any other military
use. When exporting the products or technology described herein, you should follow the applicable export
control laws and regulations, and procedures required by such laws and regulations.
4. All information included in this document such as product data, diagrams, charts, programs, algorithms, and
application circuit examples, is current as of the date this document is issued. Such information, however, is
subject to change without any prior notice. Before purchasing or using any Renesas products listed in this
document, please confirm the latest product information with a Renesas sales office. Also, please pay regular
and careful attention to additional and different information to be disclosed by Renesas such as that disclosed
through our website. (http://www.renesas.com )
5. Renesas has used reasonable care in compiling the information included in this document, but Renesas
assumes no liability whatsoever for any damages incurred as a result of errors or omissions in the information
included in this document.
6. When using or otherwise relying on the information in this document, you should evaluate the information in
light of the total system before deciding about the applicability of such information to the intended application.
Renesas makes no representations, warranties or guaranties regarding the suitability of its products for any
particular application and specifically disclaims any liability arising out of the application and use of the
information in this document or Renesas products.
7. With the exception of products specified by Renesas as suitable for automobile applications, Renesas
products are not designed, manufactured or tested for applications or otherwise in systems the failure or
malfunction of which may cause a direct threat to human life or create a risk of human injury or which require
especially high quality and reliability such as safety systems, or equipment or systems for transportation and
traffic, healthcare, combustion control, aerospace and aeronautics, nuclear power, or undersea communication
transmission. If you are considering the use of our products for such purposes, please contact a Renesas
sales office beforehand. Renesas shall have no liability for damages arising out of the uses set forth above.
8. Notwithstanding the preceding paragraph, you should not use Renesas products for the purposes listed below:
(1) artificial life support devices or systems
(2) surgical implantations
(3) healthcare intervention (e.g., excision, administration of medication, etc.)
(4) any other purposes that pose a direct threat to human life
Renesas shall have no liability for damages arising out of the uses set forth in the above and purchasers who
elect to use Renesas products in any of the foregoing applications shall indemnify and hold harmless Renesas
Technology Corp., its affiliated companies and their officers, directors, and employees against any and all
damages arising out of such applications.
9. You should use the products described herein within the range specified by Renesas, especially with respect
to the maximum rating, operating supply voltage range, movement power voltage range, heat radiation
characteristics, installation and other product characteristics. Renesas shall have no liability for malfunctions or
damages arising out of the use of Renesas products beyond such specified ranges.
10. Although Renesas endeavors to improve the quality and reliability of its products, IC products have specific
characteristics such as the occurrence of failure at a certain rate and malfunctions under certain use
conditions. Please be sure to implement safety measures to guard against the possibility of physical injury, and
injury or damage caused by fire in the event of the failure of a Renesas product, such as safety design for
hardware and software including but not limited to redundancy, fire control and malfunction prevention,
appropriate treatment for aging degradation or any other applicable measures. Among others, since the
evaluation of microcomputer software alone is very difficult, please evaluate the safety of the final products or
system manufactured by you.
11. In case Renesas products listed in this document are detached from the products to which the Renesas
products are attached or affixed, the risk of accident such as swallowing by infants and small children is very
high. You should implement safety measures so that Renesas products may not be easily detached from your
products. Renesas shall have no liability for damages arising out of such detachment.
12. This document may not be reproduced or duplicated, in any form, in whole or in part, without prior written
approval from Renesas.
13. Please contact a Renesas sales office if you have any questions regarding the information contained in this
document, Renesas semiconductor products, or if you have any other inquiries.
1.8 Absolute Maximum Ratings...................................................................................................................................... 1-11
2.4 Serial Port Interface.................................................................................................................................................... 2-7
2.6 Power Supply Module...............................................................................................................................................2-11
2.7 USB Interface...........................................................................................................................................................2-12
3.1.2 Serial Port Connector (J3)................................................................................................................................. 3-5
3.1.3 Power Supply Connector (J4) ........................................................................................................................... 3-6
3.1.4 External Power Supply Connector for SH7285 (J5, J6).....................................................................................3-7
3.1.5 DC Power Jack (J7) .......................................................................................................................................... 3-8
3.1.8 USB Connector (J14)......................................................................................................................................3-16
3.2 Outline of Switches and LEDs..................................................................................................................................3-18
3.2.1 CPU Power Supply Select Jumpers (JP1) ...................................................................................................... 3-19
3.2.2 External Power Supply Select Jumper (JP2, JP3, JP4, JP5)..........................................................................3-20
3.2.4 Serial Port Select Jumper (JP7, JP8)..............................................................................................................3-22
3.2.5 Switch and LED Functions.............................................................................................................................. 3-23
3.2.6 Jumper Switch Setting when Using Development Tool................................................................................... 3-25
3.3 Board Dimensions of M3A-HS85.............................................................................................................................. 3-26
The M3A-HS85 is the CPU board designed for users to evaluate the functionalit y and performance of the SH7285
group of Renesas Technology original microcomputer, as well as develop and evaluate the application software for
this group of microcomputers. The Sh7285’s data bus, address bus and various internal peripheral circuit function
pins are connected to the extension connector of the M3A-HS85, al lowing 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-HS85.
1.2 Configuration
Figure 1.2.1 shows an example of system configuration using the M3A-HS85.
SH7285 CPU Board
M3A-HS85
Serial port
connector
USB
Extension
connector
High-performance
Embeded Workshop(HEW)
SuperH RISC engine
C/C++ compiler package
* : It is necessary to prepare separately for software development.
*
*
Figure 1.2.1 Example System Configuration of M3A-HS85
SH7285
HEW
debugger
Host
computer
USB
*
DC 5V
Power Supply
(1.5A min.)
H-UDI connector
(14-pin or 36-pin)
E10A-USB
*
*
Overview
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1
1.3 External Specifications
Table 1.3.1 lists the external specifications of M3A-HS85.
Table 1.3.1 External Specifications of M3A-HS85
No. Item Content
SH7285
z Input(XIN) Clock: 12.5 MHz
z CPU Clock: Maximum 100 MHz
1 CPU
2 Memory
3 Connector
4 LED
5 Switch
6 Package Dimension
z Bus Clock: Maximum 50 MHz
z On-chip memory
• Flash Memory: 768 KB
• RAM: 32 KB
zSRAM: 2-Mbyte (16-bit bus width x 1 pc.) (Not mounted)
*Can be mounted only when SH7285 is used in 3.3V.
zSDRAM: 16-Mbyte (16-bit bus width x 1 pc.) (Not mounted)
*Can be mounted only when SH7285 is used in 3.3V.
zEEPROM: 128k-bit (Not mounted)
HN58X24128FPIE x 1 pc. (I
z Extension connector (Bus,I/O,VCC,GND)
z USB connector (Standard-B receptacle)
z Serial port connector (D-sub 9-pin)
z H-UDI connector (14-pin)
z H-UDI connector (36-pin)
z POWER LED (1pc.)
z User LED (6pcs.)
z Reset switch (1pc.)
z NMI switch (1pc.)
z IRQ1 switch (1 pc.)
z DIP switch for system setting (1pc., 4 poles)
z DIP switch for user (1pc., 4 poles)
z Dimensions : 100mm x 100mm
z Mounting form : 6-layer, double side mounted
z Board configuration : 1 board
2
C bus connection)
Overview
1.3 External Specifications
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1
1.4 External View
Figure 1.4.1 shows the external view of M3A-HS85.
Figure 1.4.1 External View of M3A-HS85
Overview
1.4 External View
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1
1.5 M3A-HS85 Block Diagram
Figure 1.5.1 shows the system block diagram of M3A-HS85.
SRAM
2 MB
H-UDI connector
(36-pin)
EEPROM
(128 k-bit)
*
AUD
I2C
H-UDI connector
H-UDI
(14-pin)
SH7285
(100 MHz)
SCI0
(48 MHz)
(12.5 MHz)
Serial Port
Connector
USB
USBXIN
XIN
Overview
1.5 M3A-HS85 Block Diagram
USB
Connector
SDRAM
16 MB
*
16
16
16
SH7285 CPU Board
M3A-HS85
Extension Connectors
: It is not mounted.
* : It can be mounted only when SH7285 is used in 3.3V.
Figure 1.5.1 System Block Diagram of M3A-HS85
16
External bus: Maximum 50 MHz
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1.6 M3A-HS85 Board Overview
Figure 1.6.1 shows the M3A-HS85 board overview.
<Top view of the component side>
Overview
1.6 M3A-HS85 Board Overview
<Top view of the solder side>
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Figure 1.6.1 M3A-HS85 Board Overview
1-6
1
Table 1.6.1 lists the main components mounted on the M3A-HS85.
Table 1.6.1 Main Components Mounted in the M3A-HS85
Overview
1.6 M3A-HS85 Board Overview
Symbol Parts Name Remarks
U1 CPU SH7285 (Renesas)
U2 SRAM Not mounted R1LV1616RSA-7S (Renesas)
U3 SDRAM Not mounted EDS1216AATA-75E (Elpida)
U4 EEPROM Not mounted HN58X24128FPIE (Renesas)
U5 RS-232C driver SP3232ECA(Sipex)
U6 Reset IC
X1
X1
X2
X3
X4
J1 H-UDI connector (36pin) DX10M-36SE(50) (Hirose)
J2 H-UDI connector (14pin) 7614-6002BL(3M)
J3 Serial port connector XM2C-0942-132L(Omron)
J4
J5
J6
J7 DC power jack
J8,J10,J11
J9,J12
J13
J14 USB connector UBB-4R-D14T-4D(SN)(LF) (JST)
LED1
LED2-7
SW1
- Operational Specifications Connectors, Switches and LEDs
• SH7285 extension connector
• Switches and LEDs
• H-UDI connector
Detailed in Chapter 3.
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Functional Overview
2
2.2 CPU
The M3A-HS85 contains the 32-bit RISC microcomputer SH7285 that operates with a maximum 100MHz of CPU
clock frequency. The SH7285 includes 768-Kbyte flash memory, and 32-Kbyte RAM, making it useful in a wide range
of applications from data processing to equipment control.
The M3A-HS85 can be operated with a maximum 100MHz of CPU clock frequency (external bus maximum 50
MHz) using a 12.5 MHz input clock.
Figure 2.2.1 shows the SH7285 block diagram in the M3A-HS85.
The SH7285 includes a 768-Kbytes flash memory and 32-Kbytes RAM.
2.3.2 SRAM
Two Mbytes of SRAM can be mounted on the M3A-HS85 (Not mounted). In the M3A-HS85 specification, 3.3V
power is supplied to SRAM so that SH7285 should be used in 3.3V when SRAM is mounted (CPU power supply
switch jumper (JP1) should be set to “2-3”). SRAM is controlled by the bus state controller built into SH7285. The
address spaces of SRAM can be switched to CS0 space, CS2 space, and CS6 space by the pin function controller
setting of SH7285.
Table 2.3.1 lists the SRAM specifications. Figure 2.3.1 shows the block diagram for the connection between
SH7285 and SRAM.
Table 2.3.1 SRAM Specifications
Part Number Bus size Capacity Package
2.3 Memory
R1LV1616RSA-7S 16 bit 2 Mbytes (16-bit x 1M word x 1 pc.) 48-pin TSOP (20 x 12mm)
SH7285
PB8/A20 - PC1/A1
PB11/CS0/CS2/CS6
PA14/RD
PA8/RDWR
PA12/WRH
PA13/WRL
Figure 2.3.1 Block Diagram for Connection Between SH7285 and SRAM
20
16
Reset
3.3V
R1LV1616RSA-7
16M-bit SRAM
(1M Word ×16bit)
A19 - A0
DQ15 - DQ0PD15/D15 - PD0/D0
BYTE
CS1
CS2
OE
WE
UB
LB
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Functional Overview
2
2.3.3 SDRAM
The M3A-HS85 can mount 16Mbytes of SDRAM (Not mounted). In the M3A-HS85 specification, 3.3V power is
supplied to SDRAM so that SH7285 should be used in 3.3V when SDRAM is mounted (CPU power supply switch
jumper (JP1) should be set to
Table 2.3.2 lists the SDRAM specifications. Figure 2.3.2 shows the block diagram for the connection between
SH7285 and SDRAM.
Specification Content
Configuration 2M words x 16 bits x 4 banks (1pc.)
Capacity 16 Mbytes
Access Time 5.4ns
CAS Latency 2 (at 40MHz bus clock)
Refresh Interval 4096 refresh cycle every 64ms
Low Address A11- A0
Column Address A8 - A0
Number of Banks 4-bank operation controlled by BA0 and BA1
“2-3”). The SDRAM is controlled by the bus state controller built into SH7285.
Table 2.3.2 SDRAM Specifications
2.3.3 SDRAM
SH7285
PC14/A14
PC13/A13
PC12/A12-PC1/A1
PA15/CK
PA9/CKE
PB12/CS3
PA6/RASL
PA7/CASL
PA8/RDWR
PA12/DQMLU
PA13/DQMLL
PD15/D15-PD0/D0
Figure 2.3.2 Block Diagram for the Connection Between SH7285 and SDRAM
BA1
11
16
BA1
BA0
BA0
A11-A0
A11-A0CLK
CLK
CKE
CKE
CS#
CS
RAS#
RAS
CAS
CASWE#
WE
DQMU
DQMU
DQML
DQML
DQ15-DQ0
SDRAM
(8M Word x 16bit)
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Functional Overview
2
2.3.4 EEPROM
The M3A-HS85 can mount the 128k-bits of EEPROM (Not mounted). The EEPROM is controlled by the I2C bus
interface included in SH7285.
Table 2.3.3 lists the specification outline of EEPROM.
Figure 2.3.3 shows the connection circuit block diagram of SH7285 and EEPROM.
Table 2.3.3 EEPROM Specification Outline
Part Number I nt erf ace Capacity Package
HN58X24128FPIE 2-wire system serial (I2C bus)
*
128k bit (16k-word x 8-bit) 8-pin SOP
2.3.4 EEPROM
Figure 2.3.3 Block Diagram of SH7285 and EEPROM
Note*: I2C bus is a trademark of Koninklijke Philips Electronics N. V.
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Functional Overview
2
2.4 Serial Port Interface
2.4 Serial Port Interface
SCI channel 0 or SCI channel 3 of SH7285 can be connected with the serial port connector in the M3A-HS85 (SCI
channel 3 is connected to serial port connector (J3) in initial setting.). SCI channel to connect to a serial port
connector is switched by the serial port switch jumper (JP7 and JP8).
SCI channel 0 of SH7285 is connected to an H-UDI connector (14-pin and 36-pin). When SCI channel 0 of SH7285
is used as a serial port connector, note that it should not be double-used on the other connectors.
Figure 2.4.1 shows the block diagram of serial port interface in the M3A-HS85.
1
2
3
4
5
6
7
8
9
DCD
RxD
TxD
DTR
GND
DSR
RTS
CTS
RI
Serial port
connector
RS-232C
SH7285
JP
PE4/RXD3
PA0/RXD0
PE5/TXD3
PA1/TXD0
1
2
3
JP
1
2
3
H-UDI connector
PA0/RXD0/CS0/TDI
PA1/TXD0/CS1/TDO
Extension connector
PE4/RXD3
PE5/TXD3
Figure 2.4.1 Block Diagram of Serial Port Interface
driver
NC
GND
NC
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2
2.5 I/O Ports
In the M3A-HS85, all of the SH7285's I/O ports are connected to the extension bus connector.
Some I/O ports are connected to DIP switches and LEDs, and users are free to use these ports.
Figure 2.5.1 shows the block diagram of DIP Switch and LEDs.
DIP switch for user
DIP switch for user
DIP switch for user
DIP switch for user
z
z
z z
z
z
z
z
z
z
LED
z
LED
z
LED
z
LED
Remarks
Note *: Connected only when the 0Ω resistance is mounted.
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Functional Overview
2
2.6 Power Supply Module
2.6 Power Supply Module
In M3A-HS85, 5V power is input to the board and 3.3V is generated by using a regulator. The regulator used is
output voltage variable type and given voltage value can be generated by changing the resistance value.
5V power can be supplied from DC stabilized power supply (via power supply connector (J4)) and AC adapter (via
DC power supply jack (J7)).
SH7285 system power supply (VCC) can be switched to 3.3V/5V by setting 3V/5V select jumper (JP1)(Initially it is
set to 5V). When VCC is switched, please note the points shown as follows.
• When 5V is set in the state that SRAM or SDRAM is mounted,the voltage that exceeds the maximum rating is
supplied from the address line, data line, and control line to SDRAM or SRAM, and devices could be destroyed. Thus,
using like this must be avoided.
(3.3V is supplied to 3V system device such as SRAM and SDRAM even when 5V is set.)
By setting jumpers, system power (VSS), A/D power (AVCC), AVREF power, and USB power (DrVCC) of SH7285
can be individually supplied from external power supply.
Figure 2.6.1 shows the block diagram of M3A-HS85 power supply circuit.
Extension connector
AVCC
DC5V
input
J4
Power
connector
J7
DC power jack
Power switch
5VCC
5VCC
5VCC
5VCC
5V
3.3V
3VCC
J8 connector
JP4
J8 connector
JP5
3.3V/5V select
jumper (JP1)
1
2
3
JP
VCC
SRAM
AVREF
External
power supply
JP2
JP3
SDRAM
VCC_CPU
External
power supply
SH7285
AVCC
AVREF
VCC
DrVCC
(USB power supply)
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Extension connector
It is not initially mounted.
Mountable only for 3.3V operation
Figure 2.6.1 Block Diagram of Power Supply Circuit
2-11
Functional Overview
2
2.7 USB Interface
2.7 USB Interface
The M3A-HS85 contains a USB connector (Standard-B receptacle).
When a cable is connected to USB host/hub in the state that this CPU board is not turned on, the voltage is
impressed from USB host/hub to VBUS. Thus, the CPU board should be turned on before USB cable is connected.
When you want to delay a notification of connection to USB host/hub (the cases such as in the processing of high
priority or initialization), it can be controlled by PB10. The powered state is kept regardless of the states USD+ and
USD- when pin VBUS of SH7285 is set to low level.
Figure 2.7.1 shows the block diagram of M3A-HS85 USB interface.
Oscillator (48MH z )
3.3V
Ceralock
CSTCZ48M0X12R
(Murata)
:Not mounted
SH7285
DrVCC
DrVSS
USBEXTAL
USBXTAL
Figure 2.7.1 Block Diagram of USB Interface
PB10
VBUS
HD74LV1GT08ACME-E
USB
series B
connector
Vbus
3.3V
HD74LV1GT126ACME-E
OE
USD+
USD-
D+
D-
GND
VbusPB10VBUSD+Remarks
000Hi-ZInitial value
010Hi-Z
100Hi-Z
111Pull-up When USB is connected
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Functional Overview
2
2.8 Clock Module
2.8 Clock Module
The clock module in the M3A-HS85 consists of the following two blocks:
•
Output from a oscillator connected to EXTAL of the SH7285
•
Ceramic resonator connected to EXTAL and XTAL
The M3A-HS85 has a 12.5MHz ceramic oscillator connected to it as standard specification. (The oscillator is
mounted via 8-pin IC socket.)
When the ceramic resonator is used, R7 should be removed.
Figure 2.8.1 shows the block diagram of clock module.
Oscillator
CLK
R7
*1
0
EXTAL
XTAL
SH7285
PA15/CK
Extension connector
SDRAM(U3)_CLK pin
Ceramic resonator
12.5MHz
*1: To mount the ceramic resonator, R7 should be removed.
: Not mounted component
Figure 2.8.1 Block Diagram of Clock Module
*1
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2
2.9 Reset Module
This circuit controls the reset signal of SH7285 mounted on the M3A-HS85.
Figure 2.9.1 shows the block diagram of reset module in the M3A-HS85.
Functional Overview
2.9 Reset Module
Figure 2.9.1 Block Diagram of Reset Module
2.10 Interrupt Switches
In the M3A-HS85, the push switches are connected with the pins NMI and IRQ1 of SH7285.
Figure 2.10.1 shows the block diagram of interrupt switch.
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Figure 2.10.1 Block Diagram of Interrupt Switch
2-14
2
2.11 E10A-USB Interface
The M3A-HS85 has the H-UDI connectors (J1 and J2) to connect with E10A-USB.
____________________
ASEBRKAK
M3A-HS85 is connected to E10A-USB, SW4-1 should be set to
When it is connected to E10A-USB in the state that SW4-1 is set to
Figure 2.11.1 shows the block diagram of E10A-USB interface.
________________
/ASEBRK
/FWE pin of SH7285 is connected to DIP switch for system setting (SW4-1). When the
“OFF” after FWE switch jumper (JP6) is set to “1-2”.
“ON”, it cannot be normally debugged.
Functional Overview
2.11 E10A-USB Interface
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Figure 2.11.1 Block Diagram of E10A-USB Interface
2-15
2
Functional Overview
2.11 E10A-USB Interface
*This is a blank page*
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Chapter3Operational Specifications
Chapter3
Operational Specifications
3-1
3
3.1 M3A-HS85 Connectors Outline
Figure 3.1.1 shows the M3A-HS85 connector assignments.
<Top View of the Component Side >
Operational Specifications
3.1 M3A-HS85 Connectors Outline
< Top View of the Solder Side >
Figure 3.1.1 M3A-HS85 Connector Assignments
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Operational Specifications
3
3.1.1 H-UDI Connector (J1, J2)
The M3A-HS85 includes a 36-pin H-UDI (J1) connector and 14-pin H-UDI (J2) connector for a connection to the
E10A-USB emulator.
Figure 3.1.2 shows the pin assignments of H-UDI (J1) connector.
35
36
Board
edge
Board
edge
35
36
Figure 3.1.2 Pin Assignments 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
Figure 3.1.3 shows the pin assignments of H-UDI (J2) connector.
714613512411310291
Board
edge
Board
edge
[Note] Please note that the assignments of pin numbe r by Ren esas is different
from the assignments of pin number by the manufacturing company of con nector.
Figure 3.1.3 Pin Assignments of H-UDI (J2) Connector
Table 3.1.2 lists the pin assignments of H-UDI (J2) connector.
J2
Operational Specifications
3.1.1 H-UDI Connector (J1, J2)
8
Top view of the
component side
Side view
Table 3.1.2 Pin Assignments of H-UDI (J2) Connector
Pin Signal Name Pin Signal Name
1
TCK
_________
2
TRST
3
TDO
___________________
4
ASEBRKAK
5
TMS
6
TDI
_______
7
RES
______________
/ASEBRK
8
9
10
11
12
13
14
NC
(GND)
GND
UVCC
GND
GND
GND
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3.1.2 Serial Port Connector (J3)
The M3A-HS85 contains a serial port connector (J3).
Figure 3.1.4 shows the pin assignments of serial port connector.
Operational Specifications
3.1.2 Serial Port Connector (J3)
5
9
Board
edge
5
9
Board
edge
Figure 3.1.4 Pin Assignments of Serial Port Connector (J3)
Table 3.1.3 lists the pin assignments of serial port connector.
Table 3.1.3 Pin Assignments of Serial Port Connector (J3)
Pin Signal Name Pin Signal Name
1 NC 6 DSR
2 RXD 7 RTS
3 TXD 8 CTS
_______
4 DTR
5 GND
9 NC
1
6
Top view of the
component side
1
6
Side view
_______
_______
_______
Pins 4-6 and Pins 7-8 are loop back connected.
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3.1.3 Power Supply Connector (J4)
The M3A-HS85 includes a connector for power supply.
Figure 3.1.5 shows the pin assignments of power supply connector.
12
Board
edge
12
Board
edge
Figure 3.1.5 Pin Assignments of Power Supply Connector (J4)
Operational Specifications
3.1.3 Power Supply Connector (J4)
Top view of the
component side
Side view
Table 3.1.4 lists the pin assignments of power supply connector for M3A-HS85.
Table 3.1.4 Pin Assignments of Power Supply Connector (J4)
Pin Signal Name PinSignal Name
1 +5V 2 GND
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3.1.4 External Power Supply Connector for SH7285 (J5, J6)
The M3A-HS85 contains a connector pin for external power supply to be supplied to the power for CPU and USB.
When the power is supplied by using this connector, remove the post heads of the external power switch jumpers
(JP2 and JP3) to be in the released state.
Figure 3.1.6 shows the pin assignments of power supply connector.
Top view of the
component side
3.1.4 External Power Supply Connector for SH7285 (J5, J6)
J6
1
DrVCC
2
Board
edge
J5
12
VCC-CPU
Figure 3.1.6 Pin Assignments of Power Supply Connector (J5, J6)
Table 3.1.5 lists the pin assignment of power supply connector (J5) for SH7285.
Table 3.1.5 Pin Assignments of Power Supply Connector for SH7285 (J5)
Pin Signal Name PinSignal Name
1 VCC-CPU 2 GND
Table 3.1.6 lists the pin assignments of power supply connector (J6) for SH7285.
Table 3.1.6 Pin Assignments of Power Supply Connector for SH7285 (J6)
Pin Signal Name PinSignal Name
1 DrVCC 2 GND
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3.1.5 DC Power Jack (J7)
A DC power jack can be mounted on the M3A-HS85. Figure 3.1.7 shows the pin assignments of DC power jack,
and Table 3.1.7 lists the pin assignments of DC power jack (J7).
Top view of the
solder side
2
1
3
J7
3.1.5 DC Power Jack (J7)
Board
edge
Figure 3.1.7 Pin Assignments of DC Power Jack (J7)
Table 3.1.7 Pin Assignments of DC Power Jack (J7)
Pin Signal Name
+5V
1
GND
2
GND
3
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3.1.6 Extension Connectors (J8-J12)
The M3A-HS85 includes the through-hole for mounting extension connectors to which the I/O pins of the SH7285
are connected.
MIL standard connectors can be connected to J8-J12, allowing users to connect with extension boards or monitor
the SH7285 bus signals.
Figure 3.1.8 shows the pin assignments of extension connector.
Board edge
40
39
1920
20
19
J11
J10
2
1
3.1.6 Extension Connectors (J8-J12)
2
1
J12
Top view of the
solder side
Board edge
J8
J11
J8
2
1
J9
2
1
40
39
20
19
J10
20
19
40
39
1920
12
J12
J9
20
19
40
39
2
1
2
1
12
2
1
2
1
[Note]:The pin numbers on CPU board are defined base d on t he assumption that extension
connectors are installed in the component side. Thus, the assignments of pin number on the
extension connector side and the CPU board side are different when extension connectors
are installed in the solder side.
Figure 3.1.8 Pin Assignments of Extension Connectors
Board edge
Top view of the
component side
Board edge
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Table 3.1.8 lists the pin assignments of extension connector (J8).
Table 3.1.8 Pin Assignments of Extension Connectors (J8)
Table 3.1.9 lists the pin assignments of extension connectors (J9).
Table 3.1.9 Pin Assignments of Extension Connectors (J9)
Pin Signal Name
1 5VCC 2 5VCC 3 WDTOVF# 4 PE6/TIOC2A/TIOC3DS/SCK3 Extension Connector (J8)
5 PE5/TIOC1B/TIOC3BS/TXD3 Serial Port Connector (J3) *When JP7 is ”2-3”
6 PE4/TIOC1A/RXD3 Serial Port Connector (J3) *When JP8 is ”2-3”
7 PE3/TIOC0D/TIOC4DS/TEND1 DIP Switch for User (SW3)
8 PE2/TIOC0C/TIOC4CS/DREQ1 DIP Switch for User (SW3)
9 PB8/A20/WAIT/POE8/IRQ7/SCK0 SRAM (U2)*
J13 is the one having installed it for the examination when this board is developed. Please do not use it.
Top view of the
component side
131411129107856341
Board
edge
Figure 3.1.9 Pin Assignments of the Extension Connectors (J13)
Connector mounting hole
2
J13
3.1.7 Extension Connector (J13)
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3.1.8 USB Connector (J14)
The M3A-HS85 has a connector for USB (series B plug).
Figure 3.1.10 shows the pin assignments of USB connector (J14), and Table 3.1.13 lists the pin assignments of
USB connector (J14).
Top view of the
component side
Board
edge
Side view
2
3
2
1
4
1
3.1.8 USB Connector (J14)
Board
edge
Figure 3.1.10 Pin Assignments of USB Connector (J14)
Table 3.1.13 Pin Assignments of USB Connector (J14)
Pin Signal Name
Vbus
1
D-
2
D+
3
GND
4
43
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3.1.9 GND Connector (J15)
The M3A-HS85 has a connector for GND. This is because GND such as measuring instruments can be easily
connected when debugging.
Figure 3.1.11 shows the pin assignments of GND connector (J15). Table 3.1.14 lists the pin assignments of GND
connector (J15).
Top view of the
component side
13
GND
J15
Board
edge
Figure 3.1.11 Pin Assignments of GND Connector (J15)
3.1.9 GND Connector (J15)
Table 3.1.14 Pin Assignments of GND Connector (J15)
Pin Signal Name
GND
1
GND
2
GND
3
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3.2 Outline of Switches and LEDs
The M3A-HS85 includes switches and LEDs as its operational components.
Figure 3.2.1 shows the M3A-HS85 operational component assignment.
The power voltage supplied to SH7285 can be switched to 3.3V supply or 5V supply by setting JP1.
The power voltage which can be switched in this jumper is only SH7285 (U1). The supply voltages for the
components such as external memories are not changed.
Figure 3.2.2 shows the pin assignments of select jumper for CPU power supply. Table 3.2.1 lists the pin
assignments of jumper for CPU power supply select jumper for CPU power supply.
Top view of the
component side
Board
edge
13
5V
3.3V
JP1 PWRSEL
3.2.1 CPU Power Supply Select Jumpers (JP1)
Jumper Setting Function
JP1
PWRSEL
: Initial Setting
Note: Do not change jumper settings during the operation of M3A-HS85. Ensure to turn off the power for the
M3A-HS85 before changing jumper settings.
Board
edge
Figure 3.2.2 Pin Assignments of Select Jumper for CPU Power Supply (JP1)
Table 3.2.1 Pin Assignments of Select Jumper for CPU Power Supply (JP1)
1-2
2-3
5V voltage is supplied to CPU
3.3V voltage is supplied to CPU
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3.2.2 External Power Supply Select Jumper (JP2, JP3, JP4, JP5)
By setting JP2 to JP5, the source of power voltage supplying to A/D reference power supply (AVREF), analog
power supply (AVCC), USB power supply (DrVCC), and system power supply of SH7285 can be switched.
Figure 3.2.3 shows the external power supply select jumper assignments. Table 3.2.2 lists the external power
supply select jumper setting.
Top view of the
component side
3.2.2 External Power Supply Select Jumper (JP2, JP3, JP4, JP5)
Jumper Setting Function
JP2
CPU-VCC SEL
JP3
DrVCC SEL
JP4
AVCCSEL
JP5
AVREFSEL
: Initial Setting
DrVCC SEL
JP3
FIX INT
AVCC SEL
FIX AVCC
2
1
JP4
12
AVREF SEL
2
FIX AVREF
1
JP5
CPU-VCC SEL
JP2
FIX INT
12
Figure 3.2.3 External Power Supply Select Jumper Assignments (JP2,JP3,JP4,JP5)
Table 3.2.2 External Power Supply Select Jumper Setting (JP2,JP3,JP4,JP5)
1-2
SH7285 power supply voltage (VCC) is supplied from J4 or J7
Open External power supply voltage (supplied from J5 or H13)
1-2
SH7285 USB power supply (DrVCC) is supplied from J4 or J7 (via regulator)
Open External power supply voltage (supplied from J6 or H14)
1-2
SH7285 AVCC is connected to 5V fixed power supply voltage.
Open External power supply voltage (supplied from J8 or H8)
1-2
SH7285 AVREF is connected to 5V fixed power supply voltage.
Open External power supply voltage (supplied from J8 or H9)
Note: Do not change jumper settings during the operation of M3A-HS85.
Ensure to turn off the power for the M3A-HS85 before changing jumper settings.
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3.2.3 FWE Pin Select Jumper (JP6)
By setting JP6, pin FWE/
connector, or the extension connector (J13). This jumper should be set only when you want the pin FWE/
of SH7285 is connected to the extension connector (J13).
: Initial Setting
Note: Do not change jumper settings during the operation of M3A-HS85.
Ensure to turn off the power for the M3A-HS85 before changing jumper settings.
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3.2.4 Serial Port Select Jumper (JP7, JP8)
SCI channel of SH7285 connecting to the serial port connector (J3) is changed by the setting of JP7 and JP8.
SCIF channel 3 is connected to the serial port connector (J3) as the initial setting. When SCI channel 0 is
connected to the serial port connector (J3), note that H-UDI connectors (J1 and J2) and the extension connector
(J13) cannot be used.
Figure 3.2.5 shows the serial port select jumper assignments. Table 3.2.4 lists the serial port select jumper setting.
Top view of the
component side
JP7
JP8
SEL
TXD
RXD
3
3
TXD0
1
TXD3
1
3.2.4 Serial Port Select Jumper (JP7, JP8)
Board
edge
SEL
RXD0
RXD3
Jumper Setting Function
JP7
TXDSEL
RXD SEL
: Initial Setting
Note: Do not change jumper settings during the operation of M3A-HS85.
Board
edge
Figure 3.2.5 Serial Port Select Jumper Assignments (JP7, JP8)
Table 3.2.4 Serial Port Select Jumper Setting (JP7, JP8)
1-2
2-3 Pin PA1/TXD0 of SH7285 is connected to
1-2 Pin PE4/RXD3 of SH7285 is connected to
2-3 Pin PA0/RXD0 of SH7285 is connected to
Pin PE5/TXD3 of SH7285 is connected to the serial port connector (J3).
serial port connector (J3).
the
serial port connector (J3). JP8
the
serial port connector (J3).
the
Ensure to turn off the power for the M3A-HS85 before changing jumper settings.
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3.2.5 Switch and LED Functions
The M3A-HS85 includes six switches and seven LEDs.
Table 3.2.5 lists switches mounted on M3A-HS85.
Table 3.2.5 Switches Mounted on M3A-HS85
No. Function Remarks
SW1 System power on/off switch SW2 System reset input switch See section 2.9 for details.
SW3 DIP switch for user (4-pole)
SW3-1 OFF : PE0=”H” ON : PE0=”L”
SW3-2 OFF : PE1=”H” ON : PE1=”L”
SW3-3 OFF : PE2=”H” ON : PE2=”L”
SW3-4 OFF : PE3=”H” ON : PE3=”L”
SW4 System setup DIP switch (4-pole) See Table 3.2.6 for the functions
SW5 NMI input switch See section 2.10 for details.
SW6 IRQ1 input switch See section 2.10 for details.
Table 3.2.6 lists the functions of switch SW4. The operation mode of SH7285 is set by the combination of the pins
FWE, MD0, and MD1. Table 3.2.7 lists the SH7285 operating mode setting.
FWE pin is multiplexed with the
to
“OFF”.
_______________
ASEBRK
___________________
/ASEBRKAK
signal. When E10A-USB is used, SW4-1(FWE) must be set
Table 3.2.6 Functions of Switch SW4
No. Setting Function
OFF FWE="H" (Releasing the writing/erasing protects of on-chip flash memory) SW4-1
FWE
MD1
MD0
TP
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 MD0 pin state "H" SW4-3
ON MD0 pin state "L"
OFF H1=”H” SW4-4
ON H1=”L”
It is connected to a test hole (H1). You can use it freely like connecting it to the
input pin of SH7285 via H1.
: Initial Setting
PE0, PE1, PE2, and PE3 are pulled up.
See section 2.5 on chapter 2 for details.
3.2.5 Switch and LED Functions
Operating mode
setting
(See Table 3.2.7)
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Table 3.2.7 SH7285 Operating Mode Setting
SW4-1
(FWE)
ON ON ON Mode 0
ON ON OFF Mode 1
ON OFF ON Mode 2 MCU extension mode 2 (On-chip ROM enabled)
ON OFF OFF Mode 3 Single chip mode (On-chip ROM enabled)
OFF ON ON Mode 4 * Boot mode (On-chip ROM enabled)
OFF ON OFF Mode 5 * User boot mode (On-chip ROM enabled)
OFF OFF ON Mode 6 * User program mode (On-chip ROM enabled)
OFF OFF OFF Mode 7 * USB boot mode (On-chip ROM enabled)
: Initial Setting
Note: * It is the programming mode of flash memory.
Table 3.2.8 lists the functions of LEDs mounted on M3A-HS85.
SW4-2
(MD1)
SW4-3
(MD0)
Operating
Mode
Operational Specifications
3.2.5 Switch and LED Functions
SH7285 Operating Mode
Mode Name
MCU extension mode 0
(On-chip ROM disabled,CS0 space :16bit bus)
MCU extension mode 1
(On-chip ROM disabled,CS0 space:8bit bus)
Table 3.2.8 Functions of LEDs mounted on M3A-HS85
No. Color
LED1 Blue Power-on LED (LED1 lights when power is supplied)
LED2 Green Open to user (LED2 lights on when PE9 outputs "L")
LED3 Green Open to user (LED3 lights on when PE11 outputs "L")
LED4 Green Open to user (LED4 lights on when PE12 outputs "L")
LED5 Green Open to user (LED5 lights on when PE13 outputs "L")
LED6 Green Open to user (LED6 lights on when PE14 outputs "L")
LED7 Green Open to user (LED7 lights on when PE15 outputs "L")
Functions/Remarks
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3.2.6 Jumper Switch Setting when Using Development Tool
SH7285
writing control pin. Thus, when development tools such as E10A-USB and Flash Development Toolkit (FDT) are used,
the jumper switch should be set as shown in Table 3.2.9.
E10A-USB H-UDI connector
programmer
Note:*1: When JP6 is set to “1-2”, it must be set to “OFF”.
’s emulator related signals (FWE/ASEBRKAK
Tool Connector
(J1 or J2)
Serial port connector
(J3)
USB connector
(J14)
Flash
Extension connector
(J13)
_____________________
Table 3.2.9 Setting when Using Connectors
JP6 JP7,8 SW4-1 SW4-2,3
“1-2” “1-2” OFF -
- “2-3” OFF *1- FDT
- “2-3” OFF
“2-3” “1-2” - -
3.2.6 Jumper Switch Setting when Using Development Tool
________________
/ASEBRK
, TDI, and TDO) are multiplexed with on-chip flash
Setting
*1
OFF
OFF
Remarks
Mode 7
USB boot mode
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3.3 Board Dimensions of M3A-HS85
Figure 3.3.1 shows board dimensions of M3A-HS85.
<Top View of the Component Side >
Operational Specifications
3.3 Board Dimensions of M3A-HS85
< Top View of the Solder Side >
Figure 3.3.1 Board Dimensions of M3A-HS85
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Appendix
M3A-HS85 SCHEMATICS
A-1
*This is a blank page*
A-2
1
2
3
4
5
SH7285 CPU Board M3A-HS85 SCHEMATICS
AA
TITLE
INDEX
SH7285
EPROM/SRAM/SDRAM
Serial Interface/USB
PAGE
1
2
3
4
Note:
5VCC = Digital 5V
3VCC = 3.3V
VCC = ETC 5V/3.3V
VCC_CPU = CPU 5V/3.3V
BB
H-UDI,Reset,Power
Other Connectors,PUSH_SW,LED
5
6
AVCC = CPU Analog 5V
DrVCC = USB 3.3V
3VCC_SRAM = SRAM 3.3V
3VCC_SDRAM = SDRAM 3.3V
R = Fixed Resistors
RA = Resister Array
VR = Resistor Potentiometers
C = Ceramic Caps
CE = Electrolytic Caps