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PCB View with Coding Switches and Connectors
3.4.3 VMEbus Power-Up Options
After a reset the Tundra PCI/X-to-VMEbus-bridge TS148 evaluates different PCI/X-bus and
VMEbus signals to enable or disable various functions. For the VMEbus the data signals VD[0] to
VD[3] are evaluated.
Coding switch
contact
VMEbus
data bit
Power-up option
Description
8
VD[0]
SFAILEN_RV
SFAILEN Control Bit Reset Value
7
VD[1]
SFAILAI_AC
SFAILAI Control Bit Auto Clear
5
VD[2]
ASIDEN
Auto Slot ID Enable
6
VD[3]
GSIDEN
Geographical Slot ID Enable
Table 16:
VMEbus-Power-Up option bits
Note:
Please, refer to chapter '5.4.2 VMEbus Power-up Options' in the manual of the
Tundra PCI/X-to-VMEbus-Bridge TS148 [1] for details about the comprehensive
VMEbus Power-Up options.
Page 26 of 49
Hardware Manual • Doc.-No.: V.1917.21 / Rev. 1.2
VME-PMC-CPU/2