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MVME3100 Single Board Computer Installation and Use (6806800M28C)
114
PCI_B_SPD:
PCI bus B speed. Indicates the frequency of PCI bus B.
00: 33 MHz
01: 66 MHz
10: 100 MHz
11: 133 MHz
PCIX_B: PCI-X bus B. A set condition indicates that bus B is operating in
PCI-X mode. A cleared condition indicates PCI mode.
PCI_B_64B: PCI bus B 64-bit. A set condition indicates that bus B is enabled to operate in 64-
bit mode. A cleared condition indicates 32-bit mode.
ERDY1: EREADY1. Indicates that the PrPMC module installed in PMC site 1 is ready for
enumeration when set. If cleared, the PrPMC module is not ready for enumeration. If no PrPMC
is installed, this bit is always set.
ERDY2: EREADY2. Indicates that the PrPMC module installed in PMC site 2 is ready for
enumeration when set. If cleared, the PrPMC module is not ready for enumeration. If no PrPMC
is installed, the bit is always set.
5.0V_VIO: 5.0V VIO Enabled. This bit set indicates that the PMC bus (PCI bus B) is configured
for 5.0V VIO.
FIELD
3.3V_VIO
5.0V_VIO
ERDY2
ERDY1
PCI_B_64B
PCIX_B
PCI_B_SPD
OPERRRRRRRRR
RESETXXX01XXX
Table 6-9 PCI Bus B Status Register (continued)
REG PCI Bus B Status Register - 0xE2000005