Motorola 700/800-Series Manuel D’Utilisation

2-2

Hardware Preparation and Installation

Chapter 4, and/or in the MVME162FX Embedded Controller 
Programmer's Reference Guide as listed in Related Documentation in 
Chapter 1.)

Figure 2-1 illustrates the placement of the switches, jumper 
headers, connectors, and LED indicators on the MVME162LX. 
Manually configurable items on the board are listed in the 
following table. Default settings are enclosed in brackets.

J1

System 
controller 
selection

No jumper

[1-2]

2-3

Not system controller.
System controller.
Auto system controller.

J11

IP bus clock 
selection

[1-2]

2-3

8MHz clock.
32MHz clock.

J12

SCSI 
termination

No jumper

[1-2]

Onboard terminators disabled.
Onboard terminators enabled.

J14

SRAM backup 
power source 
selection

No jumper

[1-3, 2-4]

3-5, 4-6
1-3, 4-6
3-5, 2-4

Backup power disabled.
Primary : VMEbus +5V STBY Ñ secondary : VMEbus +5V STBY.
Primary : onboard battery Ñ secondary : onboard battery.
Primary : VMEbus +5V STBY Ñ secondary : onboard battery.
Primary : onboard battery Ñ secondary : VMEbus +5V STBY.

J16

Flash write 
protection

[No jumper]

1-2

Flash write protection on (writes disabled).
Flash write protection off (writes enabled).

J18

IP bus strobe 
selection

No jumper

[1-2]

Strobe disconnected.
Strobe connected.

J19

IP DMA snoop 
selection

1-2, no jumper

[1-2, 3-4]

Snoop enabled (pins 1-2 = donÕt care).
Snoop inhibited.

J20

EPROM/Flash 
conÞguration

3-4, 9-11, 10-12

[5-6, 9-11, 8-10]

7-9, 8-10

1-2, 7-9, 8-10

256K x 8 EPROMs.
512K x 8 EPROMs.
1M x 8 EPROMs.
1M x 8 EPROMs (on-board Flash disabled).

J21

General-
purpose 
readable jumper 
conÞguration

[No jumper]

7-8

EPROM selected.
Flash selected.
Other headers are user-deÞnable (see description).