n82802 Intel Corporation, n82802 Datasheet - Page 3

• Manufacturer Part Number: n82802
• Description: Firmware Hub Fwh
• Manufacturer: Intel Corporation

Contents
1.
2.
3.
4.
5.
Datasheet
R
Architectural Overview ................................................................................................................. 9
1.1.
1.2.
Pinout Configurations ................................................................................................................. 13
2.1.
Interface Operation Description ................................................................................................. 17
3.1.
3.2.
3.3.
3.4.
3.5.
Functional Descriptions.............................................................................................................. 19
4.1.
4.2.
4.3.
4.4.
4.5.
4.6.
4.7.
4.8.
4.9.
Registers
4.10.
4.11.
4.12.
Electrical Specifications ............................................................................................................. 33
5.1.
Interface Overview........................................................................................................... 9
1.1.1.
1.1.2.
Nonvolatile Flash Memory Core .................................................................................... 10
Pin Descriptions............................................................................................................. 14
Read
Write
Output Disable............................................................................................................... 17
Reset
Operational Effects of Hardware Write-Protect Pins TBL# and WP# ........................... 18
Read Array Command................................................................................................... 21
Read Identifier Codes Command .................................................................................. 21
Read Status Register Command................................................................................... 21
Clear Status Register Command................................................................................... 21
Block Erase Command ................................................................................................. 22
Program Command....................................................................................................... 22
Block Erase Suspend Command .................................................................................. 23
Program Suspend Comand........................................................................................... 23
Register Based Locking, General-Purpose Input, and Random Number Generator
4.9.1.
4.9.2.
4.9.3.
Using the Random Number Generator ......................................................................... 28
Detecting and Initializing the RNG Device..................................................................... 28
4.11.1.
4.11.2.
4.11.3.
4.11.4.
4.11.5.
4.11.6.
CUI Automation Flowcharts........................................................................................... 31
Absolute Maximum Ratings........................................................................................... 33
4.9.2.1.
4.9.3.1.
4.9.3.2.
4.9.3.3.
Intel Firmware Hub Interface....................................................................... 10
Address/Address-Multiplexed Interface ...................................................... 10
17
17
17
23
T_BLOCK_LK and T_MINUSxx_LK — Block-Locking Registers ............... 25
General-Purpose Input Register ................................................................. 26
Random Number Generator Registers ....................................................... 27
Detecting the RNG Device .......................................................................... 28
Initializing the RNG Device.......................................................................... 29
Selecting Appropriate FWH IDs and Densities ........................................... 29
Mapping FWH Devices onto Memory Map ................................................. 30
Paging FWH Devices for Greater Than 4 MB of FWH Memory ................. 30
Programming Multiple FWH Devices .......................................................... 30
GPI_REG — General-Purpose Input Register ............................... 26
RNG Hardware Status Register ..................................................... 27
RNG Data Status Register ............................................................. 27
RNG Data Register......................................................................... 28
Intel
®
82802AB/AC Firmware Hub
3