572 AMD Geode™ LX Processors Data Book
GeodeLink™ PCI Bridge Register Descriptions
33234H
6.16 GeodeLink™ PCI Bridge Register Descriptions
All GeodeLink™ PCI Bridge (GLPCI) registers are Model
Specific Registers (MSRs) and are accessed via the
RDMSR and WRMSR instructions.
The registers associated with the GLPCI are the Standard
GeodeLink Device (GLD) MSRs and GLPCI Specific
MSRs. Table 6-91 and Table 6-92 are register summary
tables that include reset values and page references where
the bit descriptions are provided.
The MSR address is derived from the perspective of the
CPU Core. See Section 4.1 "MSR Set" on page 45 for
more detail on MSR addressing.

Table 6-91. Standard GeodeLink™ Device MSRs Summary

MSR
Address Type Register Name Reset Value Reference
50002000h RO GLD Capabilities MSR (GLD_MSR_CAP) 00000000_001054xxh Page 574
50002001h R/W GLD Master Configuration MSR
(GLD_MSR_CONFIG)
00000000_00000000h Page57 4
50002002h R/W GLD SMI MSR (GLD_MSR_SMI) 00000000_0000003Fh Page575
50002003h R/W GLD Error MSR (GLD_MSR_ERROR) 00000000_0000003Fh Page576
50002004h R/W GLD Power Management MSR
(GLD_MSR_PM)
00000000_00000015h Page57 7
50002005h R/W GLD Diagnostic MSR (GLD_MSR_DIAG) 00000000_00000000h Page577

Table 6-92. GLPCI Specific Registers Summary

MSR
Address Type Register Name Reset Value Reference
50002010h R/W GLPCI Global Control (GLPCI_CTRL) 44000000_00000000h Page578
50002011h R/W GLPCI Arbiter Control (GLPCI_ARB) 00000000_00000000h Page581
50002012h R/W GLPCI VPH / PCI Configuration Cycle Con-
trol (GLPCI_PBUS)
00FF0000_00000000h Page584
50002013h R/W GLPCI Debug Packet Configuration
(GLPCI_DEBUG)
00000000_00000000h Page58 4
50002014h R/W GLPCI Fixed Region Enables
(GLPCI_REN)
00000000_00000000h Page58 4
50002015h R/W GLPCI Fixed Region Configuration A0-BF
(GLPCI_A0)
00000000_00000000h Page58 5
50002016h R/W GLPCI Fixed Region Configuration C0-DF
(GLPCI_C0)
00000000_00000000h Page58 6
50002017h R/W GLPCI Fixed Region Configuration E0-FF
(GLPCI_E0)
00000000_00000000h Page58 7
50002018h R/W GLPCI Memory Region 0 Configuration
(GLPCI_R0)
00000000_00000000h Page58 8
50002019h R/W GLPCI Memory Region 1 Configuration
(GLPCI_R1)
00000000_00000000h Page58 9
5000201Ah R/W GLPCI Memory Region 2 Configuration
(GLPCI_R2)
00000000_00000000h Page59 0
5000201Bh R/W GLCPI Memory Region 3 Configuration
(GLPCI_R3)
00000000_00000000h Page59 1
5000201Ch R/W GLCPI Memory Region 4 Configuration
(GLPCI_R4)
00000000_00000000h Page59 2