Другие предметы \ Радиоприемные устройства связи и вещания

The DSP has general-purpose and dedicated registers in each of its functional blocks, страница 22

PC I C onfig ura tion Re g iste r Sp a c e , Func tion 2

PCI Configuration Spaces should be accessed only by the DSP, and only during the boot process. After the PCI interface has been configured, bit 2 of the PCI_CFGCTL register (ConfRdy) should be set by the DSP. This allows the PCI interface access to these registers while at the same time denying the DSP access.

!

Access to these registers is controlled by the PCI RDY bit in the PCI Interrupt Control Register (Page 0x08, Address 0xA2). See

“General Purpose I/O (GPIO) Control Registers” on page B-24.

Table B-27. Function 2 Registers

Register Name

Description

PCI Address

USB Address

DSP

I/O

Page

DSP I/O Address

PCI_CFG2_VID

Config2 Vendor ID

0x01-0x00

n/a

0x0B

0x00

PCI_CFG2_DID

Config2 Device ID

0x03-0x02

n/a

0x0B

0x02

PCI_CFG2_CCODEL

Config2 Class

Code[7:0],Rev

ID

0x08

n/a

0x0B

0x08

Table B-27. Function 2 Registers (Continued)

Register Name

Description

PCI Address

USB Address

DSP

I/O

Page

DSP I/O Address

PCI_CFG2_CCODEH

Config2 Class Code[23:8]

0x0B-0x0A

n/a

0x0B

0x0A

PCI_CFG2_SVID

Config2 Subsystem Vendor ID

0x2D-0x2C

n/a

0x0B

0x2C

PCI_CFG2_SDID

Config2 Subsystem Device

ID

0x2F-0x2E

n/a

0x0B

0x2E

PCI_CFG2_PWRMT

Config2 Power Mgt Capabilities.

Bit 15 set if Vaux is sensed valid.

0x45-0x44

n/a

0x0B

0x44

PC I C onfig ura tion Sp a c e

Table B-28 on page B-60, Table B-29 on page B-63, and Table B-30 on page B-65 show the PCI Configuration Space definitions for functions 0, 1, and 2.

Table B-28. PCI CONFIG SPACE for Function 0

Address

Name

Reset

Comments

0x01-0x00

Vendor ID

0x11D4

Writable from the DSP during initialization

0x03-0x02

Device ID

0x2192

Writable from the DSP during initialization

Table B-28. PCI CONFIG SPACE for Function 0 (Continued)

Address

Name

Reset

Comments

0x05-0x04

Command Register

0x0

Bus Master, Memory Space Capable, I/O Space Capable

0x07-0x06

Status Register

0x0

Bits enabled: Capabilities List, Fast

B2B, Medium Decode

0x08

Revision ID

0x0

Writable from the DSP during initialization

0x0B-0x09

Class Code

0x078000

Writable from the DSP during initialization

0x0C

Cache Line Size

0x0

Read-only

0x0D

Latency Timer

0x0

0x0E

Header Type

0x80

Multifunction bit set

0x0F

BIST

0x0

Unimplemented

0x13-0x10

Base Address 1

0x08

Register Access for all ADSP-2192 Registers, Prefetchable Memory

0x17-0x14

Base Address 2

0x08

24-bit DSP Memory Access

0x1B-0x18

Base Address 3

0x08

16-bit DSP Memory Access

0x1F-0x1C

Base Address 4

0x01

I/O access for control registers and DSP memory

0x23-0x20

Base Address 5

0x0

Unimplemented

0x27-0x24

Base Address 6

0x0

Unimplemented

0x2B-0x28

Cardbus CIS Pointer

0x1FF03

CIS RAM Pointer - Function 0 (Read Only).
Скачать файл