HPC3130A Datasheet, PDF (27/41 Pages) Texas Instruments – PCI HOT PLUG CONTROLLER

HPC3130A
PCI HOT PLUG CONTROLLER
SCPS055 – NOVEMBER 1999
configuration and control registers (continued)
hot-plug slot status register
Bit
7
6
5
4
3
2
1
0
Name
Hot-plug slot status register
Type
R
R
R
R
R
R
R
R
Default
X
X
X
X
X
X
X
X
Register:
Type:
Offset:
Default:
Description:
Hot-plug slot status
Read-only
01h (slot 0), 09h (slot 1), 11h (slot 2), 19h (slot 3)
XXh
This register reports card detection, power status, and other chip input from the hot-plug
slot interface. All bits in this register are read only, and the data read from each bit
represents the logical value of the data input from the corresponding terminal.
Table 9. Hot-Plug Slot Status Register
BIT TYPE
NAME
FUNCTION
7
R
BUSON
Bus on. This bit returns the logical value of the BUSON terminal output.
6
R
M66EN_I M66EN input. This bit returns the logical value of the M66EN terminal input.
5
R
PWRGOOD_I Power good input. This bit returns the logical value of the PWRGOOD terminal input.
4
R
PWRFAULT_I Power fault input. This bit returns the logical value of the PWRFAULT terminal input.
3
R
DETECT1_I Mech detect 1 input. This bit returns the logical value of the DETECT1 terminal input.
2
R
DETECT0_I Mech detect 0 input. This bit returns the logical value of the DETECT0 terminal input.
1
R
PRSNT2_I Card present 2 input. This bit returns the logical value of the PRSNT2 terminal input.
0
R
PRSNT1_I Card present 1 input. This bit returns the logical value of the PRSNT1 terminal input.
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