TMPR4925 datasheet(294/590 Pages) TOSHIBA

tên linh kiện	TMPR4925

Giải thích chi tiết về linh kiện	64-Bit TX System RISC TX49 Family

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Chapter 10 PCI Controller

10-32

10.4.7

P2G Memory Space 2 PCI Base Address Register (P2GM2PBASE)

0xD018

This register corresponds to the Memory Space 2 Base Address Register at offset address 0x18 of the

PCI Configuration Space.

This register cannot be accessed when the PCI Controller is in the Satellite mode.

BA[31:20]

Reserved

R/W

: Type

0x000

: Initial value

Reserved

TYPE

MSI

RRR

: Type

: Initial value

Bits

Mnemonic

Field Name

Description

31:20

BA[31:20]

Base Address

Base Address (Initial value: 0x000, R/W)

Sets the PCI base address in Target Access Memory Space 0. The size of Memory

Space 0 is selected from 1MB to 512MB using TC0[28:20].

19:4



Reserved



Prefetchable

Prefetchable (Fixed value: 0, R)

1: Indicates that memory is prefetchable.

2:1

TYPE

Type

Memory Type (Fixed value: 00, R)

00: Indicates that an address is within a 32-bit address region.

MSI

Memory Space

Memory Space Indicator (Fixed value: 0, R)

0: Indicates that this Base Address Register is for use by the PCI Memory Space.

Figure 10.4.7 P2G Memory Space 2 PCI Base Address Register

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