AMD SD186ES, SD186EM User Manual

About the SD186ES/SD186EM Demonstration Board

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The AMD exceptionally small, low-cost product for demonstration of the AMD Am186ES and Am186EM microcontrollers. See page ix for a block diagram of the board.

The SD186ES/SD186EM demonstration board is a stand-alone evaluation platform for the Am186ES or Am186EM microcontroller. The Am186ES and Am186EM microcontrollers integrate peripherals such as 12 chip-select controllers, serial controllers, 32 programmable I/Os, three timers, an interrupt controller, and watchdog timer to increase system functionality while reducing overall cost. The memory controller supports a glueless connection to SRAM, EPROM, Flash memory , and pseudo-static RAM. The Am186ES and Am186EM microcontrollers also feature an innovative bus design that frees the processor to run at nearly twice the speed of standard 80C186 processors while using commodity memory devices.

The SD186ES/SD186EM demo nstration board is des igned with a 104-pin Am186 expansion interface that provides access to the Am186ES and Am186EM microcontroller signals. The Am186 expansion interface facilitates prototyping with external devices by using the SD186ES/SD186EM demonstration board as the minimal system core of a design.

The SD186ES/SD186EM demonstration board highlights the Am186ES and

Am186EM microcontrollers’ serial ports, glueless interface to SR AM and Flash memory, and the expansion interface to peripheral attachments. A complete description of the board can be found in Chapter 2, “Demonstration Board Functional Descri ption”.

SD186ES/SD186EM Demonstration Board is designed as an

SD186ES/SD186EM Demonstation Board User’s Manual

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Theory of Operation

The SD186ES/SD186EM demonstration board demonstrates the basic processor functionality and fea tures of the Am18 6ES an d Am186E M microc ontroll ers, and the simplicity of their system des ign. As a stand-alone platform, the bo ard enables

you to test the Am186ES and Am186EM microcontrollers’ performance and functionality. The minimal number of components on the board exhibits the integration present in the processor.

Demonstration Board Features

The SD186ES/SD186EM demonstration board provides the following features:

• Am186ES or Am186EM 40-MHz microcontroller

• E86™ family boot monitor (E86MON™) board-residen t utility Information on invoking and using the E86MON software is provided in the

E86MON

• 256 Kbyte SRAM

• 256 Kbyte Am29F010-70 Flash memory

• Am186 104-pin expansion interf ace

• Two RS-232 serial ports with DB-9 connectors Please note that the Am186EM microcontroller provides one asynchronous

serial port. Thus, when the board is populated with the Am186EM microcontroller, only one serial port is featured.

• Activity LED indicators for PIO signals

• Power-on LED indicator

• Reset circuitry

Software User’s Manual.

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SD186ES/SD186EM Demonstation Board User’s Manual

Am186ES or Am186EM

Microcontroller

CPU

Clock & Reset Circuitry

Address Bus

A/D Bus

Control

Am29F010-70 Flash Bank (256 Kbyte)

SRAM Bank (256 Kbyte)

Am186 Expansion Interface

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Power & Ground

5.5-mm Barrel

Connector

RS-232 Serial Port Level Converter Circuitry

RS-232 Serial Port Level Converter Circuitry*

*Second asynchronous serial port implemen ted only with Am186ES microcontroller

DB-9

Connector

DB-9

Connector*

Figure 0-1. SD186ES/SD186EM Demonstration Board Block Diagram

SD186ES/SD186EM Demonstation Board User’s Manual

SD186ES/SD186EM Demonstration Board Documentation

The SD186ES/SD186EM Demonstration Board User’s Manual provides information on th e design and function of the S D186ES/SD186EM demonstr ation board. Detailed instructions for using the E86MON software are provided in the

E86MON

is shipped with the E86MON software installed in the on-bo a rd Flash memory

About This Manual

Chapter 1, “Quick Start” provides implementation and installation information for the demonstration board and instructions for invoking the E86MON software. Detailed information on using the E86MON software is provided in the E86MON

Software User’s Manual included in your kit.

Chapter 2, “Demonstration Board Functional Description” contains descriptions of the basic sections of the demonstration board: layout, pro cessor, Flash memory, SRAM, serial ports, power and signal LED indicators, clock and reset logic, expansion interface, and power-supply circuitry.

Chapter 3, “Product Support” provides inf ormation on reaching and using the AMD Corporate Applications technical support serv ices, pr odu ct in for mation available through AMD’ s World W ide W eb and FTP s ites, and support tools for the embedded E86 family.

Software User’ s Manual included in your kit. The demonstration board

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Appendix A, “Layout Diagram, Schematics , and Board Bill of Materials” contains a board layout drawing along with schematics and a Bill of Materials (BOM) for the SD186ES/SD186EM demonstration board.

SD186ES/SD186EM Demonstation Board User’s Manual

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Suggested Reference Material

For information on ordering the literature listed below, see page 3-4.

• Am186EM and Am188EM Microcontrollers Data Sheet AdvanES and Am188ES Microcontrollers Data Sheet Advanced Micro Devices, order number 20002

• Am186EM and AM188EM Microcontrollers User’s Manual

Advanced Micro Devices, order number 19713

• Am186ES and AM18  ES Microcontrollers User’s Manual

Advanced Micro Devices, order number 21096

• Am186 and Am188 Family Instruction Set Manual Advanced Micro Devices, order number 21267

• FusionE86 Advanced Micro Devices, order number 19255

• For current application notes and technical b ulletins, see our World Wide Web page at http://www.amd.com.

Catalog

SD186ES/SD186EM Demonstation Board User’s Manual

Documentation Conventions

The Advanced Micro Devices SD186ES/SD18 6EM Demons tratio n Board User’s Manual uses th e conventi ons shown in Table 0-1 (unless otherwise no ted). These

same conventions are used in all E86 family support product manuals.

Table 0-1. Notational Conventions

Symbol Usage Boldface Indicates that characters must be entered

exactly as shown, except that the alphabetic case is only significant when indicated.

Typewriter face Indicates computer text input or outpu t in an example

or listing.

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SD186ES/SD186EM Demonstation Board User’s Manual

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Chapter 1

Quick Start

This chapter provides information that will help you quickly set up and start using the SD186ES/SD186EM demonstration board.

The SD186ES/SD186EM demonstration board is supported by the E86MON software. The E86MON software enables you to load, run, and debug programs on the SD186ES/SD186EM demonstration board. For detailed information on using the E86MON software, refer to the E86MON included in your kit.

For information on how to:

• Connect the SD186ES/SD186EM demonstration board to a PC, see page 1-2

• Invoke the E86MON software, see page 1-4

• Troubleshoot installation problems, see page 1-5

• Locate related sources of information, see page 1-6

Software User’s Manual

SD186ES/SD186EM Demonstration Board User’s Manual

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Connecting to a PC

Follow the steps below to conne ct the S D186ES /SD18 6EM demonst ration bo ard to your PC.

Installation Requirements

The items listed below are necessary to install and run the SD186ES/SD186EM demonstration board:

• PC with an available COM port

• Terminal emulation software (such as Microsoft Windows

ProComm Plus) that supports ASCII file transfers, software flow control (Xon/ Xoff), and send break capability

• Power source for universal power supply

Board Installation

CAUTION: As with all computer equipment, the SD186ES/SD186EM demo nstration board may be

damaged by electrostatic discharge (ESD). Please take proper ESD precautions when handling any board.

Terminal or

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1. Remove the board from the shipping carton. V isually inspect the board to verify that it was not damaged during shipment.

SD186ES/SD186EM Demonstration Board User’s Manual

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2. Connect the demonstration board’s DB-9 serial port (either P1 or P0 on the ES version of the board; P1 on the EM version o f the board) to an av ailable COM port. Use the serial cable included in the SD186ES/SD186EM demonstration board kit and note that a DB-9 to DB-25 serial connector adapter is provided if your host system requires it. The pinout of the demonstration board’s serial connector is shown on page 2-9.

COM1

COM2

serial cable

DANGER: Make sure the power supply is not plugged into an electrical outlet before connecting it to the SD186ES/ SD186EM demonstration board

3. Connect th e power supply to the barrel connector on the SD18 6ES/SD186EM demonstration board.

4. Apply power to the board by connecting the power supply to an electrical outlet. Once the board is powered up, the LEDs (CR3-CR10) should flash in an oscillating pattern.

CAUTION: If using your own power supply, ensure that it is a 5-V supply. Using a 9-V supply will permanently damage the board.

SD186ES/SD186EM Demonstration Board User’s Manual

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5. Invoke the terminal emulation program at 19200 baud, no parity, 8 data bits, and 1 stop bit; enable the software flow control (Xon/Xoff), if supported.

6. Reset t he board by depressing and releasing the RESET switch (see location in Figure 2 on page 2-3). The LEDs on the board (CR3-CR10) will again flash in an oscillating pattern for three seconds, as they did upon power up.

During the three-second period while the LEDs are oscillating, type an a in the terminal window to ensure that the E86MON software uses the correct baud rate. When the E86MON software receives an a, it adjusts its baud rate (if necessary) and displays the welcome message and prompt.

If you type a character other than an a, or type no character at all, the E86MON software still displays the welcome mess age and prompt, but may be using an incorrect baud rate. Depressing and releasing the RESET switch gives you another opportunity to type an a.

7. To display the version of the monitor and the commands available, type ? and press Enter.

For detailed infor mation about using the E86MON so ftware, refer to the E86MON Software User’s Manual included in your kit.



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SD186ES/SD186EM Demonstration Board User’s Manual

Table 1-1. Installation Troubleshooting

Problem Solution

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Nothing happens when pushing the RESET button.

The computer does not respond with the E86MON software prompt.

After typing a during reset, the terminal emulation software displays unreadable characters.

After a processor reset, the LEDs do not flash in the expected oscillating pattern.

The terminal emulation program locks up the software or PC.

Sometimes it is difficult to make a good connection when pushing the small RESET button. If all else fails, remove the power supply from the AC electrical outlet and disconnect and reconnect the power supply. The LEDs will flash in an oscillating pattern when the reset is successful.

Reset the board by pressing the R E SET switch and typing an a while the LEDs are flashing in an oscillating pattern. If this does not work, verify the power, check the cables, etc.

Check the baud rate setting for the terminal emulation software. It should be set to 19200. Also check the word length (8), stop bits (1), parity (N), and turn off any hardware flow control.

Check that the power LED is on and the correct voltage is supplied to the board. Ensure that the polarity of the power connector is correct.

Check the COM port connection with the target board. Make sure that the same COM port is selected in the terminal emulation software. In some PCs if the correct COM port is not specified, the software

will fail to function—it will lock in a continuous loop waiting for an answer from the incorrect serial port.

The power LED does not turn on with power.

Immediately disconnect the power supply. Ensure that the polarity of the power connector is correct. This is a very serious fail u re of t he har dware. If the power source is connected incorrectly, the board will be permanently damaged.

There is a problem you cannot resolve.

Contact the AMD Corporate Applications technical support services. (See Chapter 3, “Product Support” for phone numbers and more information.)

SD186ES/SD186EM Demonstration Board User’s Manual

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For More Information...

If you need more information about:

• SD186ES/SD186EM demons tration board har dware,

see Chapter 2, “Demonstration Board Functional Description”

• E86MON software,

see the E86MON

• Problems with the board or the E86MON software,

see Chapter 3, “Product Support”

• SD186ES/SD186EM demons tration board layout and schematics,

see Appendix A, “Layout Diagram, Schematics, and Board Bill o f Material s”

• the Am186ES microcontroller

see the Am186ES and Am188ES Microcontrollers Data Sheet

• the Am186EM microcontroller,

see the Am186EM and Am188EM Microcontrollers Data Sheet

Software User’s Manual

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SD186ES/SD186EM Demonstration Board User’s Manual

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Chapter 2

Demonstration Board Functional Description

The SD186ES/SD186EM de monstration board prov ides a completely stand-alone microcontroller -based evaluation platform in a low-cost , exceptionally small formfactor product. The SD186ES/SD186EM demonstration board was designed to meet the needs of customers working with the Am186ES and Am186EM microcontrollers.

Read the following sections to learn more about the SD186ES/SD186EM demonstratio n board hardw are:

• “Layout and Placement” on page 2-2

• “Am186ES and Am186EM Microcontrollers Implementation” on page 2-4

• “ROM Space” on page 2-7

• “SRAM” on pa ge 2-7

• “RS-232 Serial Ports” on page 2-8

• “Clock and Reset Logic” on page 2-10

• “Am186 Expansion Interface” on page 2-10

• “PIO Activity LED Indicators” on page 2-13

• “Power Supply” on page 2-14

SD186ES/SD186EM Demonstration Board User’s Manual

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Layout and Placement

The design of the SD186ES/SD186EM demonstration board emphasizes ease of use and small size. Refer to Figure 2 on page 2-3 for board layout and component placement.

The SD186ES/SD186EM demo nstration b oard has the Flash and SRAM memory devices (U3, U4 and U7, U8) directly below the processor . Th is placement keeps the memory devices as close as possible to the processor to minimize noise and trace reflections. The 40-MHz fundamental mode crystal (Y1) is located to the right of the processor. Th e expansion interface (J2 and J3) is located at the bottom of the board for easy connection and access. Finally, the 5.5-mm power-supply barrel connector (J1) is positioned in the upper, left corner of the board.

The RS-232 serial interfaces are positioned on the right of the board. Please note that the ES version of the board features two serial ports (P0 and P1), which are driven by the two asynchronous serial interfaces on the Am186ES microcontroller . The Am186EM microcontroller provides one asynchronous serial interface so the EM version of the board implements the serial port with a DB-9 connector (P1).

Table 2-1. SD186ES/SD186EM Demonstration Board Parts List

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2-2

Part Number

CR1–CR10 Power and signal LEDs Page 2-13 J1 Power connector Page 2-14 J2–J3 Expansion interface Page 2-10 U1 Voltage supply supervisor (TI TL7705A) Page 2-10 U2 Am186ES or Am186EM 40-MHz

U3–U4 Flash memory Page 2-7 U5–U6 RS-232 driver/receiver devices (MAX232) Page 2-8 U7–U8 SRAM Page 2-7 Y1 40-MHz fundamental mode crystal Page 2-10

SD186ES/SD186EM Demonstration Board User’s Manual

Description For more

information, see

Page 2-4

microcontroller

GND

SW1

POWER

CR1

ES/EM

CR2

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Reset

Advanced

Micro

Devices

Am186EM-40VC

CR3

CR4

CR5

CR6

CR7

CR8

CR9

CR10

HI FLASH HI SRAM LOW FLASH LOW SRAM

U3 U7 U4

Advanced Micro Devices

SD186ES/EM DEMO BOARD

019

ES Only

C D

Notes:

1.On the SD186ES demonstration board, P1 is asynchronous serial port 0; P0 is asynchronous serial port 1.

2.On the SD186EM demonstration board, P1 is an asynchronous serial port; P0 does not exist.

Figure 2-1. SD186ES/SD186EM Demonstration Board Layout

SD186ES/SD186EM Demonstration Board User’s Manual

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+ 33 hidden pages