NH82801GHM S L8YR Intel, NH82801GHM S L8YR Datasheet - Page 247

• Manufacturer Part Number: NH82801GHM S L8YR
• Manufacturer: Intel

Specifications of NH82801GHM S L8YR

• Lead Free Status / RoHS Status: Compliant

Functional Description
Note:
5.25.4
5.25.4.1
Table 5-62. Required Commands and Opcodes
5.25.4.2
Table 5-63. Intel
Intel
®
ICH7 Family Datasheet
The following is a list of additional requirements specific to the ICH7 with Intel PRO
82573E configuration:
The ICH7 only supports Mode 0 on SPI flash devices.
Intel
Required Command Set for Inter Operability
Table 5-62
serial flash device must support in order to be interoperable with the serial flash
interface.
Recommended Standard Commands
The following table contains a list of standard commands that a SPI device should
support to be compatible with the ICH7. This list only contains standard commands and
is not meant to be an all inclusive list of commands that SPI devices can support.
Program Data
Read Data
Read Status
Write Status
Write Disable
Write Enable
Fast Read
JEDEC ID
Identify Device
• Erase size capability of at least one of the following: 4 KBytes (preferred) or 256
• Byte write must be supported.
• A serial flash device that requires the Write Enable command must automatically
• Status Register bit 0 must be set to 1 when a write or erase is in progress and
• Minimum density of 4 Mb for non-BIOS data storage
• Minimum density of 8 Mb for shared flash configurations (4 Mb for non-BIOS data +
Commands
Commands
bytes.
clear the Write Enable Latch at the end of Data Program instructions
cleared to 0 when a write or erase is not in progress.
4 Mb for BIOS - platform dependant based on size of BIOS)
®
®
ICH7 Standard SPI Commands
ICH7 Compatible Command Set
contains a list of commands and the associated opcodes that a SPI based
OPCODE
OPCODE
02h
03h
05h
01h
04h
06h
0Bh
ABh
9Fh
If command is supported by a device, 01h must be supported.
If command is supported by a device, 06h must be supported.
Intel
Either JEDEC ID (9Fh) or an Identify Device with ABh is required,
not both.
Either JEDEC ID (9Fh) or an Identify Device with ABh is required,
not both
®
ICH7 does not support this command.
Notes
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