PCI Bridge
MPC8260 PowerQUICC II Family Reference Manual, Rev. 2
Freescale Semiconductor 9-35
9.11.1.8 PCI General Control Register (PCI_GCR)

The PCI general control register (PCI_GCR), shown in Figure 9-22, contains a bit for controlling the PCI

reset signal when in host mode.

Figure 9-22. PCI General Control Register (PCI_GCR)

Table9-9. describes PCI_GCR fields.

9.11.1.9 Error Status Register (ESR)

The error status register (ESR), shown in Figure9-23, contains status bits for various types of error

conditions captured by the PCI bridge. Each status bit is set when the corresponding error condition is

captured. Each bit is cleared by writing a one.

12–1 Reserved, should be cleared.
0 LE_MODE Little endian mode. Controls the translation of 60x-PCI and PCI-60x. Refer to
Section9.11.2.27.1, “Additional Information on Endianess” for more details.
0 Big endian mode.
1 Little endian mode.
31 16
Field —
Reset 0000_0000_0000_0000
R/W R/W
Addr 0x10882
15 10
Field — SPRST
Reset 0000_0000_0000_0000
R/W R/W
Addr 0x10880

Table9- 9. PCI_GCR Field Descriptions

Bits Name Description
31–1 Reserved, should be cleared.
0 Soft PCI Reset Only valid when in host mode. Allows PCI_RST to be controlled software.
Setting this bit drives the PCI reset signal high; clearing it drives the signal low.

Table9- 8. GPCR Field Descriptions (continued)

Bits Name Description