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Intel® IQ80219 General Purpose PCI Processor Evaluation Platform
Hardware Reference Section
3.10.9.10
Switch S8E1- 7
Used to enable the IDSEL reroute function at reset or power-up. The reset value of the secondary bus
private device mask register is modified according to the tie value of the IDSEL_REROUTE_EN pin.
0 = on: reset value of the secondary bus private device mask register is x'00000000'.
1 = off: reset value of the secondary bus private device mask register is x'22F20000'.
Table 58.
Switch S8E1 - 7: Descriptions
Switch
S8E1-7
Table 59.
Switch S8E1 - 7: Settings and Operation Mode
S8E1-7
Off
On
3.10.9.11
Switch S8E1- 8
Used to enable the opaque memory region at reset or power-up. The reset value of bit 0 of the
opaque memory enable register is modified according to the tie value of the OPAQUE_EN pin.
0 = on: reset value of bit 0 of the opaque memory enable register is b'0'.
1 = off: reset value of bit 0 of the opaque memory enable register is b'1'.
This register enables the opaque memory base, opaque memory limit, opaque memory base upper
32 bits, and the opaque memory limit upper 32 bits registers. These registers specify a range of 64-bit
memory addresses that are used exclusively on the secondary PCI bus and are not to be accepted by
the bridge on either the primary or secondary interfaces.
Table 60.
Switch S8E1 - 8: Descriptions
Switch
S8E1-8
Table 61.
Switch S8E1 - 8: Settings and Operation Mode
S8E1-1
Off
On
62
Association
IDSEL_REROUTE_EN: Sets the value of SPCI-X
PCI-X Bridge
private device mask.
PCI-X Bridge hides the devices that using private space address lines.
PCI-X Bridge does not hide any devices.
Association
PCI-X Bridge
OPAQUE-EN: controls OPAQUE memory register.
Enables opaque.
No opaque.
Description
Operation Mode
Description
Operation Mode
Factory Default
Off
Factory Default
Off
Board Manual
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