VT6307 datasheet(21/54 Pages) VIA

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VT6307 PCI 1394a Host Controller

Revision 1.2 October 1, 2002

-15-

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REGISTERS

The following tables summarize the configuration and I/O

registers of the VT6307.

These tables also document the

power-on default value (“Default”) and access type (“Acc”) for

each register.

Access type definitions used are RW

(Read/Write), RO (Read/Only), “—” for reserved / used

(essentially the same as RO), and RWC (or just WC) (Read /

Write 1’s to Clear individual bits). Registers indicated as RW

may have some read/only bits that always read back a fixed

value (usually 0 if unused); registers designated as RWC or

WC may have some read-only or read write bits (see individual

Detailed register descriptions are provided in the following

section of this document.

All offset and default values are

shown in hexadecimal unless otherwise indicated

Table 4. Registers

PCI Function 0 Registers – Link Controller

Configuration Space Header Registers

Offset PCI Configuration Space Header

Default

Acc

1-0

Vendor ID

1106

3-2

Device ID

3044

5-4

Command

0000

7-6

Status

0280

Revision ID

Programming Interface

Sub Class Code

Base Class Code

-reserved- (cache line size)

—

Latency Timer

Header Type

-reserved- (Built In Self Test)

—

13-10 OHCI CSR MMIO Base Address

0000 0000 RW

17-14 VIO I/O Base Address

0000 0001 RW

1B-18 CIS Base Address (PCI Mode)

0000 0000 RO

CIS Base Address (Cardbus Mode)

0000 0000 RW

1C-27 -reserved- (base address registers)

—

28-2B CIS Pointer (PCI Mode)

0000 0000 RO

CIS Pointer (Cardbus Mode)

0000 0083 RO

2F-2C Subsystem ID Read

Nnnn nnnn RO

30-33 -reserved- (expan. ROM base addr)

—

Capabilities Pointer

35-3B -reserved- (unassigned)

—

Interrupt Line

Interrupt Pin

Minimum Grant

Maximum Latency

Controller-Specific Configuration Registers

Offset Configuration Registers

Default

Acc

43-40 PCI HCI Control

0000 0000 RO

44-4F -reserved-

—

Power Management Registers

Offset Power Management Register Block

Default

Acc

Power Management Capabilities ID

Next Pointer

53-52 Power Management Capabilities

E002

55-54 Power Management CSR

0000

Power Management CSR BSE

Power Management Data

58-FF -reserved-

—

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