Motorola SPX3BUM/D User manual

Welcome to Sandpoint, Motorola’s flexible processor development platform. Using Sandpoint
you can evaluate current Motorola host processors and integrated processors based on the
PowerPC architecture using MPMC (Motorola Processor PCI Mezzanine Cards). These cards
are interchangable and one Sandpoint platform can support numerous processor-specific
PPMC cards (but just one at a time).
This user’s manual covers the following issues:
Topic Page
Section 1, “Introduction” 2
Section 2, “Setup” 4
Section 3, “Configuration” 7
Section 4, “Programmers Model” 16
Section 5, “Initializing Sandpoint” 22
Section 6, “Development Issues” 23
Section 7, “Troubleshooting” 27
Section 8, “FAQ” 30
To locate any published errata or updates for this document, refer to the Motorola website.
User’s Manual
SPX3BUM/D
Rev. 1.2, 2/2003
Sandpoint Microprocessor
Evaluation System
User’s Manual

2 MOTOROLA
1 Introduction
The Sandpoint III motherboard, or “SP3” for short, is an evaluation baseboard which accepts one Motorola
Processor PMC (MPMC) or PrPMC card, as well as up to four PCI cards, and supplies typical PC-I/O
peripherals. Sandpoint provides a flexible base for the evaluation of new Motorola processor devices, and
for early software design for customer project using Motorola processors. Figure 1 shows a block diagram
of the Sandpoint III system.
Figure 1. Sandpoint III Block Diagram
Motorola
MPMC
Board
PCI Slots
Winbond
IDE
IDE
SuperIO
KBD
MSE
SPF100
COM1
COM2
PAR FLP
ROM1
ROM2 NVRM

MOTOROLA 3
1.1 Features
SP3 has the following features:
• One MPMC slot for a processor board (PrPMC compatible with PCI arbitration extensions).
• Two 32-bit PCI slots (5V)
• Two 32/64-bit PCI slots (5V)
• PMC and PCI slots auto-sense/auto-select 33 or 66 MHz operation.
• Two standard 16650-compatible ESD-protected serial ports.
• IEEE 1284 parallel port.
• Floppy disk port.
• Two ATA33 bus-master IDE ports.
• PS/2 mouse and keyboard connectors.
• BBVRAM; 8K bytes
•Real-TimeClock.
• Switch-selectable operating modes.
• Advanced Power Controller (“soft on/off”).
• LED monitors for critical functions.
The I/O subsystem is identical to that of the Sandpoint 2 and the “EC” version of the older Yellowknife
development platform. When properly configured, software written for these platforms should operate
identically when executed on a Sandpoint 3.

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2 Setup
Sandpoint 3 is shipped ready to run the DINK debugger software. If you will be running other operating
systems, refer to the respective installation and setup instructions. Many OSes will communicate using the
same serial port DINK does, so the following setup may apply as well.
To setup your system, you will need the following material:
• Sandpoint 3 system
• Mac, PC or workstation running a terminal program.
• Null-modem cable.
Figure 2. Sandpoint III Setup Diagram
STEP 1
Connect the Sandpoint to a 120 VAC source using the supplied AC power code. For international operation
at 240 VAC, replace the connector with an appropriately-keyed power cable.
STEP 2
Turn the power supply on using the switch at the back of the Sandpoint chassis near the power cord. The
system will not turn on at this time.
STEP 3
Attach a null-modem cable between the Sandpoint COM1 port (top-most as shown in Figure 2) to the PC
(or workstation) serial port (usually COM1).
STEP 4
Startup a terminal emulator program. Common terminal emulators include “Hyperterminal”, available for
free with most Windows PCs, and many commercial programs such as Hayes “SmartComm”. Setup the PCs
terminal program to use the following settings:
• 9600 Baud
• 8 Bits
• No Parity
1
COM1 COM2
1
COM1 COM2
',1.!!JR

MOTOROLA 5
•1StopBit
• No Handshaking
• Terminal Emulation: any
STEP 5
Turn on the Sandpoint by pushing the power switch on the front of the chassis. DINK will start and print a
banner:
###### ### # # # # ##### #####
# # # ## # # # # # # #
# # # # # # # # # #
# # # # # # ## ##### #####
# # # # # # # # # #
# # # # ## # # # # #
###### ### # # # # ##### #######
( ( ( ( (AltiVec) ) ) ) )
Version : 12.2, Metaware Build
Released : Jan 31, 2001
Written by : Motorola’s RISC Applications Group, Austin, TX
System : Sandpoint with Altimus/Talos (MPMC60x/7xx/74xx)
Processor : MPC7400 V2.8 @ 500 MHz, Memory @ 100 MHz
Memory : Map B (CHRP), 00000000...03FFFFFF
Copyright Motorola Inc. 1993-2001
Refer to ‘history.c’ for release info, changes, errata and fixes.
DINK32_MAX >>
At this point, DINK is ready to accept user commands such as downloading and starting code or assembling
user programs. Refer to the DINK User’s Manual for more details on using DINK. If you are using another
ROM, such as for an OS, follow the instructions for the ROM.

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2.1 Null Modem Cable
Since both Sandpoint 3 and the PC or workstation it communicates with are computers and therefore are
DTEs (Data Terminal Equipments), a special serial cable known as a null-modem cable is required. These
cables are readily available from computer supply stores. In addition, it is simple to make, as shown in
Figure 3.
Figure 3. Null Modem Diagram
Once the cable is available or constructed, attach one end to the Sandpoint COM1 port and the other to the
PC/Workstation. Either end will work with either computer.
DB9 Female
Back View
1
59
6
2
3
48
7
DB9 Female
Back View
1
59
6
2
3
48
7

MOTOROLA 7
3 Configuration
Sandpoint 3 is shipped ready to run the DINK firmware by default. The following configuration options are
preset:
• MPMC is the PCI arbiter.
• MPMC is the interrupt controller using Serial-EPIC.
Occasionally, however, software will require other configurations, which Sandpoint supports to a limited
extent. This is often done to make a Sandpoint more closely resemble the target development platform.
Configurable features include:
• Using an external PCI arbiter instead of the PMC-resident arbiter.
• Using the 8259 PIC in the Winbond instead of the PMC interrupt controller.
• PnP (Plug-and-Play) PC I/O devices can remain uninitialized and ‘virtually’ disappear.
Another reason to change the configuration is to use the legacy modes for Sandpoint 2 compatibility. Refer
to Appendix A for details on legacy configurations. All options on Sandpoint 3 are set via two ‘DIP’
switches, as shown in Figure 4.
Figure 4. Sandpoint 3 in an ATX Chassis
POWER
SUPPLY
WINBOND
WINBOND SW2
SW1
POWER
SWITCH

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The switches have the same orientation; with the system standing vertically, the switches operate as shown
in Figure 5
Figure 5. Sandpoint 3 SW1/SW2 Configuration Switches
All configuration switches should be changed with the power off; changes only take effect on a system
power-on reset. The system pushbutton reset is not necessarily sufficient.
3.1 SW1 Options
SW1 is located near the bottom of the Sandpoint 3 board, near the end of the fourth PCI slot. It controls the
features shown in Table 1:
Table 1. Sandpoint 3 SW1 Options
Switch Name Definition Default
1 ROMSEL ROM Selection
2 ROM1WP ROM1 Write Protect
3 reserved reserved
4 FRCPCI33 Force PCI to 33MHz
5 EXTCLK Use external clock
6 SSCLK Spread-Spectrum Clock

21
RIGHT = ON
LEFT = OFF

MOTOROLA 9
3.1.1 ROMSEL
The “ROMSEL” switch may be used to select between the primary and secondary flash device (if any) on
the Sandpoint 3.
NOTE: Not all Sandpoint 3’s have a secondary flash.
NOTE: The RMODE switch (see Section 3.3.2) overrides this switch.
3.1.2 ROM1WP
The “ROM1WP” switch may be used to write-protect the secondary (backup) PCI-hosted bootROM, if any.
This primary ROM normally contains the DINK debugger, but with the backup ROM protected, users may
overwrite the boot ROMs with development code and still return to DINK as a backup measure.
NOTE: Not all Sandpoint 3’s have a secondary flash.
3.1.3 Reserved
Switch SW2-3 is reserved and has no function.
7 SSRNG Spread-Spectrum Range
8 PSON Force Power Supply ON
Table 2. Sandpoint 3 ROMSEL Option
ROMSEL Definition Notes
SW1-1
On (right) Primary ROM (29F040) is used for PCI boot
option. Normal mode.
Off (left) SecondaryROM (28F800) is used for PCI boot
option.
Table 3. Sandpoint 3 ROM1WP Switch
ROM1WP Definition Notes
SW1-2
On (right) ROM1 may be read to or written from. Use to store OS code.
Off (left) ROM1 is write-protected.
Table 1. Sandpoint 3 SW1 Options
Switch Name Definition Default

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3.1.4 FRCPCI33
The “FRCPCI33” switch may be used to cause the PCI bus to operate at 33 MHz regardless of the status of
the M66EN signal, which normally allows the PCI bus to automatically select 66 MHz PCI. This switch is
normally enabled, forcing only 33 MHz operation since the Winbond component does not support 66 MHz
operation.
It may be possible to operate the PCI bus at 66 MHz if software does not use the Winbond or the ISA bus.
3.1.5 EXTCLK
The “EXTCLK” switch allows the user to switch from the standard, on-board 33/66 MHz PCI bus clock
generator, from which all other clocks are derived, to an externally-supplied clock signal. This allows testing
the system at different frequencies other than the standard 33 MHz or 66 MHz frequencies supported.
The clock source must be attached to the coaxial SMA connector on the board,and the clocksignal supplied
must meet the requirements listed in Table 6.
NOTE: Care must be used that the devices receiving the clock are capable of and are configured to operate
at the new clock speed. In particular, Motorola processors have internal PLLs which require a minimum
clock input to operate properly.
NOTE: The external clock source must be on before power is applied to the Sandpoint.
Table 4. Sandpoint 3 FRCPCI33 Switch
Force PCI33 Definition Notes
SW1-4
On (right) Force 33 MHz PCI only. Normal mode.
Off (left) Allow automatic 33/66 MHz PCI. Experimental purposes only.
Table 5. Sandpoint 3 EXTCLK Switch
EXTCLK Definition Notes
SW1-5
On (right) Normal clock mode Normal mode.
Off (left) Accept clock from SMA connector. Use for testing.
Table 6. Sandpoint 3 External Clock
Requirements
Parameter Value
ZIN 50 Ω
VIN 3V