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MVME2500 Installation and Use (6806800L01H)
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3.5.2 SMT Configuration Switch (S2)
This eight position SMT configuration switch controls the flash bank write-protect, selects the
flash boot image, and controls the safe start ENV settings. The default setting on all switch
positions is "OFF" and is indicated by brackets in Table 3-20.
Figure 3-6 SMT Configuration Switch Position
Table 3-20 Geographical Address Switch Settings
SW2 DEFAULT Signal Name Description Notes
1 OFF (Normal Env) NORMAL_ENV Safe Start ("ON"= Use
normal ENV, "OFF"= Use
safe ENV)
2 OFF (Flash Block A) BOOT_BLOCK_A Boot Block B Select
3 OFF (WP Disabled) FLASH_WP_N SPI Flash Write-Protect
4 OFF (PMC) PMC_XMC_SEL XMC or PMC selection
switch
Will select if XMC card or
PMC card is used
5 OFF (133 MHz) PMC_133 PCI frequency selection