Xilinx XtremeDSP Spartan-3A DSP 3400A HW-SD3400A-DSP-DB-UNI-G User Manual page 36

Chapter 1: Introduction
36
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33. Configuration DIP Switches
Eight configuration DIP switches (S2) allow you to configure the System ACE
configuration address and the FPGA configuration mode, as well as to enable the
fallback configuration of the board's System ACE configuration.
Table 1-24: Configuration DIP Switch Functions
Switch No.
8 System ACE Config address [2]
7 System ACE Config address [1]
6 System ACE Config address [0]
5 Config Mode [2] (see
0 1
4 Config Mode [1] (see
0 1
3 Config Mode [0] (see
0 1
2 Board flash memory fallback
System ACE configuration
When the System ACE configuration is
enabled, the System ACE controller (on the
1
bottom of the board) configures the FPGA from
the CompactFlash card reader (on the bottom
of the board) whenever a CompactFlash card is
inserted in the reader or the Reset ACE button
is depressed.
Table 1-25: Configuration Modes
Configuration Mode Configuration Source
MASTER SERIAL CONFIG FROM
XCF32P FLASH
MASTER SPI CONFIG FROM SPI
EEPROM
MASTER BPI-UP NOT SUPPORTED
MASTER BPI-DOWN NOT SUPPORTED
MASTER CONFIG FROM
SELECTMAP XCF32P FLASH
JTAG CONFIG FROM
SYSTEMACE
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Function
Table 1-25)
Table 1-25)
Table 1-25)
Mode [2]
0
0
0
0
1
1
Spartan-3A DSP 3400A Edition User Guide
UG498 (v2.2) November 17, 2008
On Position Off Position
0 1
0 1
0 1
0 (Disabled) 1 (Enabled)
0 (Disabled) 1 (Enabled)
Mode [1] Mode [0]
0 0
0 1
1 0
1 1
0 0
0 1
R