CX11250 Ver la hoja de datos (PDF) - Unspecified

Número de pieza

componentes Descripción

Fabricante

CX11250

SmartHSF™ Mobile Modem

Unspecified 

SmartHSF Mobile Modem Data Sheet

4.3 SERIAL EEPROM INTERFACE

The PCI Configuration Space Header and Power Management registers customizable fields are loaded from EEPROM during

Power On Reset and during D3 to D0 power transition soft reset. If the EEPROM is missing, default hard-coded values are

used. This section describes how the EEPROM content maps into the registers. The PCI Configuration Space Header and

Power Management information is used by the PC BIOS/Windows OS to find the driver for this board and also to find out the

extent PCI Power Management is typically supported on the modem board.

Obtain the appropriate EEPROM.TXT file (unique to each software configuration) from the local Conexant sales office.

4.3.1 Supported EEPROM Sizes

Two EEPROM sizes are supported: 256 by 16 bit (e.g., 93LC66B) as shown in Table 4-7 and 128 by 16 bit (e.g., 93LC56B)

as shown in Table 4-8. The difference is the 256-word version supports modem default country selection from the EEPROM

whereas the 128-word version does not.

The EEPROM text file used by the DOS4GW B2EPROM program utility lists the EEPROM content 8 bits per line in

hexadecimal format. The least significant 8 bits are listed first followed by the most significant 8 bits of the 16-bit word.

Address

00

01

02

03

04

05

06

07

08

09

0A

0B

0C

0D

0E

0F-FE

FF

Table 4-7. EEPROM Content for 256 Words by 16 Bits per Word

15

14

13

12

11

10

9

8

7

6

5

4

3

2

Device ID

Vendor ID

Subsystem Device ID

Subsystem Vendor ID

Max_Lat

Min_Gnt

Don’t Care

PMC PMC PMC PME

Class Code

bit 8 bit 7 bit 6 DRV

Sub-Class Code

Prog. I/F

CardBus CIS Pointer High (Not used, don’t care)

CardBus CIS Pointer Low (Not used, don’t care)

D0C

D1C

D2C

D3C

D0D

D1D

D2D

D3 power consumed

D2 power consumed

D1 power consumed

D0 power consumed

D3 power dissipated

D2 power dissipated

D1 power dissipated

D0 power dissipated

D3_ D3_

D2

D1

D0 D2_ D1_

DSI

Load CISRAM Count

Cold Hot

State State

Don’t Care

Don’t Care

Don’t Care

Don’t Care

1

0

D3D

Address

00

01

02

03

04

05

06

07

08

09

0A

0B

0C

0D

0E

0F-7F

Table 4-8. EEPROM Content for 128 Words by 16 Bits per Word

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

Device ID

Vendor ID

Subsystem Device ID

Subsystem Vendor ID

Max_Lat

Min_Gnt

Don’t Care

PMC PMC PMC PME

Class Code

bit 8 bit 7 bit 6 DRV

Sub-Class Code

Prog. I/F

CardBus CIS Pointer High (Not used, don’t care)

CardBus CIS Pointer Low (Not used, don’t care)

D0C

D1C

D2C

D3C

D0D

D1D

D2D

D3D

D3 power consumed

D2 power consumed

D1 power consumed

D0 power consumed

D3 power dissipated

D2 power dissipated

D1 power dissipated

D0 power dissipated

D3_ D3_

D2

D1

D0 D2_ D1_

DSI

Load CISRAM Count (Not Used, don’t care)

Cold Hot

State State

Don’t Care

Don’t Care

100553B

Conexant

4-7

Share Link: