參數(shù)資料
型號(hào)： INTEL82802AB
廠商： Intel Corp.
英文描述： Firmware Hub (FWH)
中文描述： 固件集線器（固件樞紐）
文件頁(yè)數(shù)： 3/53頁(yè)
文件大?。?/td> 471K
代理商： INTEL82802AB
Intel
82802AB/AC Firmware Hub
R
Datasheet
3
Contents
1.
Architectural Overview ................................................................................................................. 9
1.1.
Interface Overview........................................................................................................... 9
1.1.1.
Intel Firmware Hub Interface....................................................................... 10
1.1.2.
Address/Address-Multiplexed Interface ...................................................... 10
1.2.
Nonvolatile Flash Memory Core.................................................................................... 10
2.
Pinout Configurations................................................................................................................. 13
2.1.
Pin Descriptions............................................................................................................. 14
3.
Interface Operation Description ................................................................................................. 17
3.1.
Read
17
3.2.
Write
17
3.3.
Output Disable............................................................................................................... 17
3.4.
Reset
17
3.5.
Operational Effects of Hardware Write-Protect Pins TBL# and WP# ........................... 18
4.
Functional Descriptions.............................................................................................................. 19
4.1.
Read Array Command................................................................................................... 21
4.2.
Read Identifier Codes Command.................................................................................. 21
4.3.
Read Status Register Command................................................................................... 21
4.4.
Clear Status Register Command................................................................................... 21
4.5.
Block Erase Command ................................................................................................. 22
4.6.
Program Command....................................................................................................... 22
4.7.
Block Erase Suspend Command .................................................................................. 23
4.8.
Program Suspend Comand........................................................................................... 23
4.9.
Register Based Locking, General-Purpose Input, and Random Number Generator
Registers
23
4.9.1.
T_BLOCK_LK and T_MINUSxx_LK — Block-Locking Registers............... 25
4.9.2.
General-Purpose Input Register ................................................................. 26
4.9.2.1.
GPI_REG — General-Purpose Input Register............................... 26
4.9.3.
Random Number Generator Registers....................................................... 27
4.9.3.1.
RNG Hardware Status Register ..................................................... 27
4.9.3.2.
RNG Data Status Register ............................................................. 27
4.9.3.3.
RNG Data Register......................................................................... 28
4.10.
Using the Random Number Generator ......................................................................... 28
4.11.
Detecting and Initializing the RNG Device..................................................................... 28
4.11.1.
Detecting the RNG Device.......................................................................... 28
4.11.2.
Initializing the RNG Device.......................................................................... 29
4.11.3.
Selecting Appropriate FWH IDs and Densities........................................... 29
4.11.4.
Mapping FWH Devices onto Memory Map................................................. 30
4.11.5.
Paging FWH Devices for Greater Than 4 MB of FWH Memory................. 30
4.11.6.
Programming Multiple FWH Devices.......................................................... 30
4.12.
CUI Automation Flowcharts........................................................................................... 31
5.
Electrical Specifications ............................................................................................................. 33
5.1.
Absolute Maximum Ratings........................................................................................... 33
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