Motorola MPC505EVB Manual de usuario

MPC505EVB/D

March 1997

MPC505EVB

EVALUATION BOARD

USER’S MANUAL

Motorola reserves the right to make changes without further notice to any products herein to

improve reliability, function, or design. Motorola does not assume any liability arising out of the

application or use of any product or circuit described herein; neither does it convey any license

under its patent rights nor the rights of others. Motorola products are not designed, intended, or

authorized for use as components in systems intended for surgical implant into the body, or other

application in which the failure of the Motorola product could create a situation where personal

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damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any

claim of personal injury or death associated with such unintended or unauthorized use, even if

such claim alleges that Motorola was negligent regarding the design or manufacture of the part.

Motorola and the Motorola logo are registered trademarks of Motorola Inc.

Motorola Inc. is an Equal Opportunity/Affirmative Action Employer.

PowerPC is a trademark of International Business Machines Corporation.

CONTENTS

MPC505EVB/D iii

CONTENTS

CHAPTER 1 GENERAL INFORMATION

1.1 INTRODUCTION.............................................................................................................1-1

1.2 FEATURES.......................................................................................................................1-1

1.3 GENERAL DESCRIPTION.............................................................................................1-2

1.4 SPECIFICATIONS...........................................................................................................1-3

1.5 EQUIPMENT REQUIRED...............................................................................................1-4

CHAPTER 2 HARDWARE PREPARATION AND INSTALLATION

2.1 INTRODUCTION.............................................................................................................2-1

2.2 HARDWARE PREPARATION.......................................................................................2-1

2.2.1 Crystal Clock Select Header (J1).............................................................................2-5

2.2.2 Clock Source Select Header (J2)..............................................................................2-6

2.2.3 Keep Alive Power 2 Select Header (J3)...................................................................2-6

2.2.4 Keep Alive Power 2 Select Header (J4)...................................................................2-7

2.2.5 Burst Memory Select Header (J5)............................................................................2-7

2.2.6 System Clock Selection Headers (J6 and J7)...........................................................2-8

2.2.7 EVB LED Descriptions............................................................................................2-9

2.2.8 Optional Memory Configuration..............................................................................2-9

2.2.9 EVB Reset Switches...............................................................................................2-10

2.2.10EVB DIP Switches.................................................................................................2-10

2.2.10.1Chip Select Dip Switch (DS1).......................................................................2-11

2.3.10.2Reset Data Dip Switches (DS2 – DS5).........................................................2-12

2.2.10.3DTE/DCE Settings........................................................................................2-15

2.3 INSTALLATION INSTRUCTIONS..............................................................................2-16

2.3.1 Host Computer – EVB Interconnection.................................................................2-16

2.3.2 Background Mode Connector (P5).........................................................................2-17

2.3.3 Power Supply – EVB Interconnection....................................................................2-18

2.3.4 RS-232C – EVB Interconnection...........................................................................2-19

2.3.5 EVB Expansion Connectors...................................................................................2-20

2.3.6 Logic Analyzer Connectors....................................................................................2-22

2.3.7 SCSI........................................................................................................................2-23

CONTENTS

iv MPC505EVB/D

CHAPTER 3 FUNCTIONALDESCRIPTION

3.1 INTRODUCTION.............................................................................................................3-1

3.2 EVB DESCRIPTION........................................................................................................3-1

3.3 MCU SUMMARY............................................................................................................3-3

3.3.1 32-Bit Central Processor Unit....................................................................................3-3

3.3.2 Time Processor Unit..................................................................................................3-4

3.3.3 Queued Serial Module...............................................................................................3-4

3.3.4 Random Access Memory...........................................................................................3-4

3.3.5 External Bus Interface...............................................................................................3-5

3.3.6 Chip Selects...............................................................................................................3-5

3.3.7 System Clock.............................................................................................................3-5

3.3.8 Test Module...............................................................................................................3-5

3.4 USER MEMORY..............................................................................................................3-5

3.5 I/O CONNECTORS..........................................................................................................3-7

3.5.1 64-Pin Expansion Connectors...................................................................................3-7

3.5.2 Serial Communication Connectors............................................................................3-7

3.5.3 Background Mode Interface Connector.....................................................................3-7

3.6 PFB DESCRIPTION.........................................................................................................3-7

3.6.1 Floating-Point Coprocessor Socket (U5)...................................................................3-7

3.6.2 Logic Analyzer Connectors.......................................................................................3-8

CHAPTER 4 SUPPORT INFORMATION

4.1 INTRODUCTION.............................................................................................................4-1

4.2 CONNECTOR SIGNAL DESCRIPTIONS......................................................................4-1

FIGURES

2-1. EVB Connector, Switch, and Jumper Header Location Diagram.....................................2-2

2-2. Power Supply Connector (P7).........................................................................................2-18

2-3. Expansion Connector P6 Pin Assignments.....................................................................2-20

2-4. Expansion Connector P7 Pin Assignments.....................................................................2-21

3-1. EVB Block Diagram.........................................................................................................3-2

3-2.EVB Memory Map............................................................................................................3-6

CONTENTS

MPC505EVB/D v

TABLES

1-1. EVB Specifications........................................................................................................... 1-3

1-2. External Equipment Requirements ................................................................................... 1-4

2-1. Jumper Header Types........................................................................................................ 2-3

2-2. MPFB Jumper Header Descriptions.................................................................................. 2-3

2-3. MF and RFD Bits Required to Set Clock Speed............................................................... 2-5

2-4. System Clock Source Configuration................................................................................. 2-8

2-5. Optional Memory Configuration....................................................................................... 2-9

2-6. Chip Select Dip Switch (DS1) ........................................................................................ 2-11

2-7. Data Bus Reset Configuration Word............................................................................... 2-12

2-8. DS6 Communication Type Switch Settings.................................................................... 2-15

2-9. SCSI Port Parts List......................................................................................................... 2-23

4-1. SCSI Connector (not populated)....................................................................................... 4-2

4-2. RS-232C I/O Connector P2 Pin Assignments................................................................... 4-4

4-3. RS-232C I/O Connector P3 Pin Assignments................................................................... 4-5

4-4. Host Computer Connector P4 Pin Assignments ............................................................... 4-6

4-5. Debug Mode Connector P5 Pin Assignments................................................................... 4-7

4-6. P6 Expansion Connector Pin Assignments....................................................................... 4-8

4-7. Input Power Connector P7 Pin Assignments.................................................................... 4-9

4-8. P8 Expansion Connector Pin Assignments....................................................................... 4-9

4-9. Logic Analyzer Connector POD1 Pin Assignments....................................................... 4-12

4-10. Logic Analyzer Connector POD2 Pin Assignments....................................................... 4-12

4-11. Logic Analyzer Connector POD3 Pin Assignments....................................................... 4-12

4-12. Logic Analyzer Connector POD4 Pin Assignments....................................................... 4-13

4-13. Logic Analyzer Connector POD5 Pin Assignments....................................................... 4-13

4-14. Logic Analyzer Connector POD6 Pin Assignments....................................................... 4-14

4-15. Logic Analyzer Connector POD7 Pin Assignments....................................................... 4-15

CONTENTS

vi MPC505EVB/D *PRELIMINARY

GENERAL INFORMATION

MPC505EVBUM/D 1-1

CHAPTER 1

GENERAL INFORMATION

1.1 INTRODUCTION

This manual provides general information, hardware preparation, installation instructions, and

support information for the MPC505EVB Evaluation Board (EVB). The EVB lets you evaluate

PowerPC MPC505 RISC Microcontrollers.

1.2 FEATURES

EVB features include:

• MPC505 MCU running at 4-33 MHz (the default is 4 MHz)

• 512 kilobytes of flash memory (may be upgraded to 2 megabytes)

• 128 kilobytes of synchronous static RAM (may be upgraded to 1 megabyte)

• Serial port with 25-pin RS-232 connector to host computer

• MC68681 DUART providing two serial interfaces for RS-232 evaluation

• MC68HC711 MCU for the background debug mode port interface

• SCSI-2 port (optional)

• Expansion connectors for the MPC505 MCU signals

• 20-pin logic analyzer connectors for the MPC505 MCU signals

• 5-volt-to-3.3-volt converter for the MPC505 and signal buffers operation

• Reset data configuration switches

• Crystal or crystal oscillator operation

GENERAL INFORMATION

1-2MPC505EVBUM/D

1.3 GENERAL DESCRIPTION

The EVB is a low-cost tool for evaluating and debugging MPC505 MCU-based systems. The

MPC505 MCU device is an advanced single-chip MCU with on-chip memory and peripheral

functions. For more information refer to the PowerPC MPC505 RISC Microcontroller Technical

Summary (MPC505TS/D).

The EVB includes a monitor/debugging program (MPCbug) that demonstrates the capabilities of

the MPC505. You can debug user code under control of the MPCbug monitor program, assemble

it (as either a Motorola S-record, COFF, or ELF file) and download it to RAM.

The Motorola S-record format lets you encode programs or data files in a printable format for

transportation between computer systems. The transportation process can therefore be monitored

and the S-records easily edited. Refer to Appendix A for additional S-record information.

The EVB has one host computer port (P4), two RS-232C serial ports (P2 and P3) and a

background debug mode port (P5). The host computer port (DB-25 connector) is for

downloading S-records and communicating with the EVB via a host computer. You can

configure P4 as DTE or DCE. P4 is fixed at 19200 baud. P2 and P3 (DB-9 connectors) on the

EVB are RS-232C I/O ports. These two I/O ports let you evaluate MPC505 control of RS-232

communication. These ports can be configured as either data computer equipment (DCE) or data

terminal equipment (DTE) protocol via a set of switches. (An example of DCE is a modem and

DTE a computer terminal). These serial ports are available to you at all times; the development

system monitor, MPCbug, does not require these ports. Supported baud rates for P2 and P3 are

1200 to 19200. P5 (10-pin berg) lets you communicate with the MPC505 MCU in background

debug mode.

The EVB requires a user-supplied +5 Vdc power supply. The power supply voltage is converted

to +3.3 Vdc by the EVB on-board voltage converter. +3.3 Vdc is the voltage required by the

MPC505 MCU.

The EVB comes with a 4 MHz crystal and a socket for a crystal oscillator. The EVB is factory

configured to use the 4 MHz crystal as the input. You can increase the clock frequency up to 33

MHz (refer to paragraph 2.2.8).

All MPC505 MCU signals are available, unbuffered, on the expansion connectors and logic

analyzer connectors. The logic analyzer connectors let you monitor MPC505 MCU activity

during the development stage.

There are four flash memory devices (U24, U25, U27, and U28) on the EVB that provide 512

kilobytes of program storage memory. These devices are organized as long-word (32 bits wide).

You may program on-board flash memory using the MPCbug commands to download the

program via the debug port and run the programming algorithm. Flash memory may be upgraded

GENERAL INFORMATION

MPC505EVBUM/D 1-3

to 2 megabytes by replacing the devices at locations U24, U25, U27, and U28 with larger

devices. The flash memory devices require +5 volts.

There are a total of eight 52-pin PLCC sockets on the EVB (U19, U20, U21, U22, U29, U30,

U31, and U32) for synchronous static RAM (SSRAM) devices. These sockets are paired as upper

and lower words and organized for long-word (32 bits wide) data transfers. Each pair is referred

to as BANKx.

The SSRAM factory default for the EVB is 128 kilobytes installed in BANK1 (U19 and U29).

These devices have 9 nanosecond access times and zero wait state cycles. On-board SSRAM may

be expanded to 256 kilobytes by replacing the devices at locations U19 and U29 with larger

devices.

Alternately, you may increase the amount of on-board SSRAM by populating U20, U21, U22,

U30, U31, and U32 with additional SSRAM devices. You may increase the SSRAM size up to 1

megabytes. (For information on increasing on-board memory see paragraph 2.2.9.)

The EVB includes an optional SCSI-2 port connection on the MPC505. The required parts are

not provided, and the user may add them if the SCSI port is needed. A list of the required parts

are provided in Chapter 2.

1.4 SPECIFICATIONS

Table 1-1 lists the EVB specifications.

Table 1-1. EVB Specifications

Characteristics Specifications

MCU MPC509 MCU is used to emulate the

MPC505 MCU

I/O ports:

I/O devices

Host computer RS-232C compatible

RS-232C compatible

Temperature:

Operating

Storage

+25C

0 to +50 degrees C

Relative humidity 0 to 90% (non-condensing)

Power requirements +5 Vdc @ 2.0 A (min.)

Dimensions: 9.173 in. X 6.299 in. (23.3 cm X 16.0 cm)

GENERAL INFORMATION

1-4MPC505EVBUM/D

1.5EQUIPMENT REQUIRED

Table 1-2 lists the external equipment requirements for EVB operation.

Table 1-2. External Equipment Requirements

External Equipment

+5 Vdc power supply

SUN host computer

RS-232C cable assembly

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