Register 10-39. (LAS1RR; 04h) Local Address Space 1 Range

Bit	Description	Read	Write	Value after Reset
	Memory Space Indicator.Writing 0 indicates Local Address Space 1 maps into PCI Memory space. Writing 1 indicates Local Address Space 1 maps into PCI I/O space.	Yes	Yes
2:1	When mapped into Memory space, encoding is as follows: 00 = Locate anywhere in 32-bit PCI Address space 01 = PCI r2.1, Locate below 1-MB Memory Address space PCI r2.2, Reserved 10 = Locate anywhere in 64-bit PCI Address space 11 = Reserved When mapped into I/O space, bit 1 must be set to 0. Bit 2 is included with bits [27:3] to indicate the decoding range.	Yes	Yes
	When mapped into Memory space, writing 1 indicates reads are prefetchable (does not affect PCI 9030 operation, but is used for system status). When mapped into I/O space, it is included with bits [27:2] to indicate the decoding range.	Yes	Yes
27:4	Specifies which PCI Address bits to use for decoding a PCI access to Local Address Space 1. Each bit corresponds to a PCI Address bit. Bit 27 corresponds to address bit 27. Write 1 to all bits that are to be included in decode and 0 to all others (used in conjunction with PCIBAR3). Notes: Range (notRange register) must be power of 2. “Range register value” is two’s complement of range. User should limit each I/O-mapped space to 256 bytes per PCI r2.2.	Yes	Yes	0h
31:28	Reserved. (PCI Address bits [31:28] are always included in decoding.)	Yes	No	0h

Register 10-40. (LAS2RR; 08h) Local Address Space 2 Range

Bit	Description	Read	Write	Value after Reset
	Memory Space Indicator.Writing 0 indicates Local Address Space 2 maps into PCI Memory space. Writing 1 indicates Local Address Space 2 maps into PCI I/O space.	Yes	Yes
2:1	When mapped into Memory space, encoding is as follows: 00 = Locate anywhere in 32-bit PCI Address space 01 = PCI r2.1, Locate below 1-MB Memory Address space PCI r2.2, Reserved 10 = Locate anywhere in 64-bit PCI Address space 11 = Reserved When mapped into I/O space, bit 1 must be set to 0. Bit 2 is included with bits [27:3] to indicate the decoding range.	Yes	Yes
	When mapped into Memory space, writing 1 indicates reads are prefetchable (does not affect PCI 9030 operation, but is used for system status). When mapped into I/O space, it is included with bits [27:2] to indicate the decoding range.	Yes	Yes
27:4	Specifies which PCI Address bits to use for decoding a PCI access to Local Address Space 2. Each bit corresponds to a PCI Address bit. Bit 27 corresponds to address bit 27. Write 1 to all bits that are to be included in decode and 0 to all others (used in conjunction with PCIBAR4). Notes: Range (notRange register) must be power of 2. “Range register value” is two’s complement of range. User should limit each I/O-mapped space to 256 bytes per PCI r2.2.	Yes	Yes	0h
31:28	Reserved. (PCI Address bits [31:28] are always included in decoding.)	Yes	No	0h

Дата добавления: 2015-07-10