SKP36912G USER MANUAL FOR H8/36912F ON-CHIP FLASH MICROCONTROLLER
TABLE OF CONTENTS 1.0 INTRODUCTION....................................................................................................2 2.0 KIT CONTENTS......................................................................................................3 2.1 36912G Starter Kit Plus (SKP) Product List.............................. ...................……..3 3.0 SYSTEM REQUIREMENT.....................................................................................3 3.1 Host Computer Requirements...............
1.0 INTRODUCTION The H8/36912F Starter Kit Plus (SKP) is a compact system to evaluate MCU performance for the Renesas H8/300H µTINY family of micro controllers. The kit also includes sample code, documentation and tutorial to jumpstart development. It incorporates a programming system for the H8/36912F on-chip FLASH device. It contains a SOP-32 package H8/36912F microcomputer on the board. The H8/36912F SKP board adopts the common Hitachi Embedded Workshop (HEW) version 3.
2.0 Kit Contents This section describes the contents of the 36912G Starter Kit Plus (SKP) product package. When unpacking your kit, please check to see that all products listed below are included. 2.1 36912G Starter Kit Plus (SKP) Product List Table 2-1 lists the products included in the kit. Table 2-1 SKP36912G Product List Product Name Qty Remark Remark Product Name SKP36912G Board DC jack Male 12mm PCB Spacers CD-ROM 3.
It also has a low drop out regulator, which regulates up to 12V DC input voltage and gives 5V output and is capable of supplying output currents up to 300mA, 24C02 EEPROM for RAM backup at low voltage detection and MAX232 for serial communication. 3.3 Development Tools E7 Emulator is used as a development tool to execute and debug the user programs on the SKP. The diagram below shows how to connect the SKP to a PC using E7 Emulator. Please see the quick start guide on how to run the SKP using E7 Emulator.
4.0 Hardware 4.1 SKP36912G Board Figure 5-1 shows the 36912G Board with major components identified. E7 Connector 20K POT SW2 MAX232 74HC00 JP1 for current measurement Serial port Female Connector CN2 pin 4, 6 Low Drop out Regulator H8/36912 SW1 Reset Switch SW3 24C02 EEPROM SW4 DC Jack to input DC +5V supply 9.8304MHz crystal LEDs SKP36912G Board 5.0 SPECIFICATIONS 5.1 GENERAL • H8/36912F micro controller (using HD64F36912G SOP32 device).
5.4 POWER • 5V DC power supply. 5.5 LOW VOLTAGE DETECTION • A 20K Pot P1 along with ladder network resistors is used to generate required voltages for External Low Voltage Detection. 6.0 SKP FUNCTIONAL BLOCKS The SKP is composed of a H8/36912F single-chip micro-controller, Low Voltage Drop Out Regulator, 2KBit EEPROM, Serial port, 20K POT for LVD & ADC, Dipswitches for Oscillator break & Boot/User mode transition, user interface LEDs and E7 Header to connect with E7 Emulator.
The DIP Switch SW2 is used to select led indication on OSCBK/PWM1 and LVD/PWM2 LEDs. The DIP Switch SW4 is used to connect or disconnect led indication on TxD and RxD LEDs during serial communication. Low Voltage Detection is detected using Pot P1 and resistor ladder network. A 2Kbit EEPROM is used to store data during low voltage detection and recover data stored when micon operates at normal voltage. A/D conversion is also carried using the same POT P1.
7.4 RESET CIRCUITRY The reset circuitry is controlled with a Diode 1N4148, a 0.22uF capacitor and a push button switch SW3. 7.5 NMI CIRCUITRY On the SKP a DIP switch SW1.2 is used to control the NMI pin level. For FDT download, SW1 controls the BOOT and USER mode levels. 7.6 I2C INTERFACING A 2KBit ST24C02 EEPROM (U4) is interfaced using I2C protocol. 7.7 RAM AND FLASH ROM The H8/36912F has 8Kbytes of FLASH ROM and 1536 bytes of RAM. 7.
To disconnect OSCBK/PWM1 led indication, turn ON SW2.2 pin 1(i.e., connect SW2.1 pin to GND). Low Voltage Detection: Turn ON SW2.2 to use LVD/PWM2 led. This led can be used to indicate low voltage detection or lit according to PWM pulse width on port 8. To disconnect LVD/PWM2 led indication, turn ON SW2.1 pin 1(i.e., connect SW2.1 pin to GND). SCI3: Two led’s TxD and RxD are used to indicate transmit and receive operations of SCI3 during serial communication.
7.11 EXTERNAL USER INTERFACE The external user interface makes all H8/36912F signals available to the user consistent. The external user interface consists of rows of 12 pin connectors. The diagram indicates which label refers to which row of pins. The external user interface consists of a 26-pin connector. Commonly available 2.54mm (0.100 inch) pitch male headers. Micon I/O pins are connected to CN2 connector so that I/O lines can be accessed with ease.
If SW1.2 is away from ON position, NMI pin is connected to Vcc and micon is in USER mode. Please refer to diagram 4.c. If SW1.2 is ON, NMI pin is connected to GND and micon is in BOOT mode. Please refer to diagram 4.d. SW1 4.c) Micon in USER mode. SW1 4.d) Micon in BOOT mode. SW2 connects U5 NAND gate pins with GND or Vcc in order to connect P84 and P83 pins with OSCBK/PWM1, LVD/PWM2 led’s, respectively. SW2 U5 pin 4 U5 pin 2 If SW2.1 is ON, U5 pin 4 is connected to GND. If SW2.
ON OFF TxD and RxD led’s connected TxD and RxD led’s disconnected JUMPERS JP1 is a 2-pin jumper, which is placed in series with Vcc path of H8/36912F micro controller for current measurement. This jumper is shorted by default. It is opened to measure current drawn by the micro controller. 9.0 APPENDIX 9.1 BOARD LAYOUT E7 Connector 20K POT 2-way DIP switch MAX232 74HC00 RS-232 D-Type Connector Reset switch I/O Expander LDO H8/36912 2-way DIP switch 24C02 EEPROM DC JACK 9.
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