ISP1561 データシートの表示（PDF） - Philips Electronics

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ISP1561

Hi-Speed USB PCI host controller

Philips Electronics 

Philips Semiconductors

ISP1561

USB PCI host controller

Table 9:

Bit

5

4

3 to 0

Status register: bit description…continued

Symbol

Description

66MC

66 MHz Capable: This read-only bit indicates whether or not this

device is capable of running at 66 MHz. A value of logic 0

indicates 33 MHz, and a value of logic 1 indicates 66 MHz.

CL

Capabilities List: This read-only bit indicates whether or not

this device implements the pointer for a New Capabilities linked

list at offset 34H. A value of logic 0 indicates that no New

Capabilities linked list is available. A value of logic 1 indicates

that the value read at offset 34H is a pointer in Configuration

Space to a linked list of new capabilities.

-

reserved

Revision ID register (address: 08H): This one-byte read-only register indicates a

device specific revision identifier. The value is chosen by the vendor. This field is a

vendor defined extension of the Device ID. The Revision ID register bit description is

given in Table 10.

Table 10: Revision ID register: bit description

Bit

Symbol

Access

Value

7 to 0 REVID[7:0] R

30H

Description

Revision ID: This byte specifies the design revision number of

functions.

Class Code register (address: 09H): Class Code is a 24-bit read-only register used

to identify the generic function of the device, and in some cases, a specific

register-level programming interface. Table 11 shows the bit allocation of the register.

The Class Code register is divided into three byte-size fields. The upper byte is a

base class code that broadly classifies the type of function the device performs. The

middle byte is a sub-class code that identifies more specifically the function of the

device. The lower byte identifies a specific register-level programming interface, if

any, so that device independent software can interact with the device.

Table 11: Class Code register: bit allocation

Bit

23

22

21

20

19

18

17

16

Symbol

BCC[7:0]

Reset

0CH

Access

R

Bit

15

14

13

12

11

10

9

8

Symbol

SCC[7:0]

Reset

03H

Access

R

Bit

7

6

5

4

3

2

1

0

Symbol

RLPI[7:0]

Reset

X0H[1]

Access

R

[1] X is 1H for OHCI1 and OHCI2; X is 2H for EHCI.

9397 750 10015

Product data

Rev. 01 — 06 February 2003

© Koninklijke Philips Electronics N.V. 2003. All rights reserved.

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