ARM ARM DUI 0224I Selecting the boot device, S1-2 S1-1 Device, Off, Default switch positions

Models: ARM DUI 0224I

1 402
Download 402 pages 14.06 Kb
Page 40
Image 40

Getting Started

 

 

Table 2-1 Selecting the boot device

 

 

 

S1-2

S1-1

Device

 

 

 

OFF

OFF

Reserved (boot from NOR flash 2 - default setting)

 

 

 

OFF

ON

NOR flash 1, see Booting from NOR flash 1 on page 4-12

 

 

 

ON

OFF

Reserved

 

 

 

ON

ON

AHB expansion memory, see Booting from AHB expansion memory on page 4-14

 

 

 

Configuration switches S1-1 to S1-8 are not normally changed from their factory default positions listed in Table 2-2. For more information on configuration switch S1, see Configuration control on page 3-7.

 

 

Table 2-2 Default switch positions

 

 

 

Switch

Default

Function in default position

 

 

 

S1-1 and S1-2

OFF

Selects NOR flash 2 as boot memory

 

 

 

S1-3

OFF

Selects synchronous AHB bridge mode.

 

 

 

S1-4

OFF

Reserved (SSMC enabled), leave in OFF position

 

 

 

S1-5

OFF

Selects OSCCLK frequency of 35MHz.

 

 

 

S1-6 and S1-7

OFF

Selects PB926EJ-S FPGA image 0

 

 

 

S1-8

OFF

Selects Logic Tile FPGA image 0

 

 

 

Note

For information on other configuration links see Test, configuration, and debug interfaces on page 3-94. For the function of the status LEDs see LED Indicators on page 2-5,

2-4

Copyright © 2003-2010 ARM Limited. All rights reserved.

ARM DUI 0224I

Page 40
Image 40
ARM ARM DUI 0224I manual Selecting the boot device, S1-2 S1-1 Device, Off, Default switch positions