Online Register Database

  • 615146
  • 1.2
  • 08/09/2019
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Contents

Memory Base Address (MBAR) – Offset 10

Value in this register will be different after the enumeration process.

Bit Range

Default

Access

Field Name and Description

63:16

000000000000h

RW

Base Address (BA)

Bits (63:16) correspond to memory address signals (63:16), respectively. This gives 64 KB of relocatable memory space aligned to 64 KB boundaries.

15:4

-

-

Reserved

3

0b

RO

Prefetchable (Prefetchable)

This bit is hardwired to 0 indicating that this range should not be prefetched.

2:1

10b

RO

Type (Type)

If this field is hardwired to 00 it indicates that this range can be mapped anywhere within 32-bit address space.

If this field is hardwired to 10 it indicates that this range can be mapped anywhere within 64-bit address space.

0

0b

RO

Resource Type Indicator (RTE)

This bit is hardwired to 0 indicating that the base address field in this register maps to memory space