TSI148-133IL IDT, Integrated Device Technology Inc, TSI148-133IL Datasheet - Page 126

• Manufacturer Part Number: TSI148-133IL
• Description: IC PCI-VME BRIDGE 456PBGA
• Manufacturer: IDT, Integrated Device Technology Inc
• Series: Tsi148&Trade;r

Specifications of TSI148-133IL

• Applications: PCI-to-VME Bridge
• Interface: PCI
• Voltage - Supply: 3.3V
• Package / Case: 456-PBGA
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 800-1905

5. Resets, Clocks, and Power-up Options > Power-up Options
5.4.2
Table 7: VMEbus Power-up Options
126
SFAILEN Control Bit Reset Value
SFAILAI Control Bit Auto Clear
Auto Slot ID Enable
Geographical Slot ID Enable
Description
VMEbus Power-up Options
The Tsi148 VMEbus Interface supports a number of power-up options. Power-up options are
latched during the assertion of PURSTI_. During power-up reset Tsi148 negates the External
Transceiver Enable (DBOE_) signal, which puts the VD[31:0], VA[31:1], LWORD
transceivers into a high impedance state. External pull-ups or pull-downs placed between
Tsi148 and the external transceivers bring these power-up option signals to their proper state
while DBOE_ is negated.
Table 7
shows the data signal and the functionality it enables through power-up configuration.
IDT recommends using 3.3kohm pull-up or pull-down resistors to set the desired
level on the VME power-up options on the VD[3:0] pins. This resistor value has
been determined to work correctly with the bus hold circuitry on the TI
SN74VMEH22501/22501A 3A port pins.
SFAILEN_RV
SFAILAI_AC
ASIDEN
GSIDEN
Power-up Option
VD[0]
VD[1]
VD[2]
VD[3]
VMEbus Data
Signal
Tsi148 PCI/X-to-VME Bus Bridge User Manual
Control and Status
Register
• SFAILEN bit
VMEbus Control
Register
• SFAILAI bit
None - power-up
option only
None - power-up
option only
Control Register
80A3020_MA001_13
“System Fail
Enable
(SFAILEN)
Configuration” on
page 130
“Auto Slot ID
Operation” on
page 128
Table 8
Slot ID
Operation” on
page 128
Table 8
“Geographic Slot
ID Enable” on
page 129
Information
Detailed
and
and
“Auto