參數(shù)資料
型號(hào)： RH56D-PCI
廠商： Electronic Theatre Controls, Inc.
英文描述： MODEM DEVICE FAMILY FOR DESKTOP APPLICATIONS
中文描述： 調(diào)制解調(diào)器設(shè)備家庭桌面應(yīng)用程序
文件頁數(shù)： 54/60頁
文件大小： 357K
代理商： RH56D-PCI
RH56D-PCI Modem Designer’s Guide
5-6
Conexant
1213
Conexant Proprietary Information
5.3 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.
5.3.1 Supported EEPROM Sizes
Two EEPROM sizes are supported: 256 by 16 bit (e.g., 93LC66B) as shown in Table 5-7 and 128 by 16 bit (e.g., 93LC56B)
as shown in Table 5-8. The difference is the 256-word version supports modem default country selection from the EEPROM
and also supports CardBus designs, whereas the 128-word version supports neither.
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.
7DEOH ((3520 &RQWHQW IRU :RUGV E\ %LWV SHU :RUG
Address
00
01
02
03
04
05
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
Class Code
Don’t Care
PMC
bit 8
PMC
bit 7
PMC
bit 6
PME
DRV
06
07
08
09
0A
0B
0C
0D
0E
Sub-Class Code
Prog. I/F
CardBus CIS Pointer High
CardBus CIS Pointer Low
D3C
D0C
D1C
D3 power consumed
D1 power consumed
D3 power dissipated
D1 power dissipated
D1
D2C
D0D
D1D
D2 power consumed
D0 power consumed
D2 power dissipated
D0 power dissipated
Load CISRAM Count
D2D
D3D
D3_
Cold
D3_
Hot
D2
D0
D2_
State
D1_
State
DSI
0F-FE
FF
Don’t Care
Don’t Care
Don’t Care
Don’t Care
7DEOH ((3520 &RQWHQW IRU :RUGV E\ %LWV SHU :RUG
Address
00
01
02
03
04
05
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
Class Code
Don’t Care
PMC
bit 8
PMC
bit 7
PMC
bit 6
PME
DRV
06
07
08
09
0A
0B
0C
0D
0E
Sub-Class Code
Prog. I/F
CardBus CIS Pointer High
CardBus CIS Pointer Low
D3C
D0C
D1C
D3 power consumed
D1 power consumed
D3 power dissipated
D1 power dissipated
D1
D2C
D0D
D1D
D2 power consumed
D0 power consumed
D2 power dissipated
D0 power dissipated
Load CISRAM Count
D2D
D3D
D3_
Cold
D3_
Hot
D2
D0
D2_
State
D1_
State
DSI
0F-7F
Don’t Care
Don’t Care
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