TMPR4925 datasheet(343/590 Pages) TOSHIBA

343 / 590 page

Chapter 10 PCI Controller

10-81

10.4.53 G2P Configuration Address Register(G2PCFGADRS)

0xD1A0[m3]

Reserved

BUSNUM

R/W

: Type

0x00

: Initial value

DEVNUM

FNNUM

REGNUM

TYPE

R/W

: Type

0x00

000

0x00

: Initial value

Bits

Mnemonic

Field Name

Description

31:24



Reserved



23:16

BUSNUM

Bus Number

Bus Number (Initial value: 0x00, R/W)

Indicates the target PCI Bus Number (one of 256).

15:11

DEVNUM

Device Number

Device Number (Initial value: 0x00, R/W)

This field is used to identify the target physical device number. (This is one number

out of 32 devices. 21 of these 32 devices are used.)

When in the address phase of Type 0 configuration access, AD[31:11] of the upper 21

address lines are used as the IDSEL signal.

0x00: Use AD [11] as IDSEL.

0x01: Use AD [12] as IDSEL.

0x02: Use AD [13] as IDSEL.

0x13: Use AD [30] as IDSEL.

0x14: Use AD [31] as IDSEL.

0x15 - 0x1F: Reserved

10:8

FNNUM

Function Number

Function Number (Initial value: 000, R/W)

This field is used to identify the target logic function number (one out of 8).

7:2

REGNUM

This field is used to identify the DWORD (one out of 64) inside the Configuration

Space of the target function

1:0

TYPE

Type

Type (Initial value: 00, R/W)

This field is used to identify the address type in the address phase of the target

function configuration cycle.

0x0: Type 0 configuration (Use the AD[31:11] signal as the IDSEL signal.)

0x1: Type 1 configuration (Output all bits unchanged as the address to the AD[ ]

signal.)

Figure 10.4.53 G2P Configuration Address Register

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