Register Description
12.2.41Offset 70h: PM_PMCSR—Power  Management Control/Status Register
Table 75.  | Offset 70h:  | ||||
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Bits  | 
  | Type  | Reset | 
  | Description  | 
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15  | 
  | RO  | 0b  | PME Status: Not supported  | |
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14:13  | 
  | RO  | 00h  | Data Scale: Not supported  | |
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12:9  | 
  | RO  | 0h  | Data Select: Not supported | |
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8  | 
  | RWS | 0b  | PME En: Not supported  | |
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7:2  | 
  | RsvdP | 00 0000b | Preserved | |
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  | Power State: This   | |
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  | and to set the function into a new power state. Supported field values are given below.  | |
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  | •  | 00b = D0  | 
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  | •  | 01b = Reserved  | 
1:0  | 
  | RW  | 00b  | •  | 10b = Reserved  | 
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  | •  | 11b = D3 hot  | 
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  | When the software attempts to write an unsupported, optional state to this field, the write  | |
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  | operation must complete normally on the bus; however, the data is discarded and no state  | |
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  | change occurs.  | |
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12.2.42Offset 72h: PM_BSE—Power  Management Bridge Support Extensions
Table 76.  | Offset 72h:  | |||
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Bits  | 
  | Type  | Reset | Description  | 
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7  | 
  | RO  | 0b  | BPCC_En (Bus Power/Clock Control Enable): Neither bus or clock control of PCI is  | 
  | supported when in D3hot state. This bit is   | |||
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6  | 
  | RO  | 0b  | B2/B3#: Not supported. This bit has no meaning since the BPCC_En bit is   | 
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5:0  | 
  | RsvdP  | 00h  | Preserved  | 
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12.2.43Offset 73h: PM_DATA—Power  Management Data Field
Table 77. Offset 73h: PM_DATA—Power  Management Data Field
Bits  | Type | Reset  | Description  | 
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7:0  | RO  | 00h  | Data: Not supported  | 
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Intel® 41210 Serial to Parallel PCI Bridge Developer’s Manual  | 99  |