INTEL82802AC データシートの表示（PDF） - Intel
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INTEL82802AC Datasheet PDF : 53 Pages
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Intel® 82802AB/AC Firmware Hub
R
Intel® 82802AB/AC Firmware Hub
(FWH)
Product Features
§ Intel platform compatability
§ Two configurable interfaces
Enables security-enhanced platform
Firmware hub interface for platform
infrastructure; facilitates option to remove ISA.
operation
§ Firmware hub hardware interface mode
5-Signal communication interface supporting
byte-at-a-time reads and writes
Address/Address-Multiplexed (A/A Mux)
interface for programming during
manufacturing
Register-based read and write protection for
each code/data storage block
Hardware write protect pins for the top boot
block and the remaining code/data storage
blocks
5 Additional GPIs for platform design
flexibility
Contains a hardware Random Number
§ 4 or 8 Mbits of flash memory for platform
code/data nonvolatile storage
Symmetrically blocked, 64-KB memory
sections
Available in 8-Mbit (Intel® 82802AC) and 4-
Mbit (Intel® 82802AB) densities
Automated byte program and block erase via
an integrated Write State Machine (WSM)
Generator (RNG) for enhancing platform
§ Address/Address-Multiplexed (A/A Mux)
security
interface/mode
Integrated Command User Interface (CUI) for
11-Pin multiplexed address and 8-pin data
requesting access to locking, programming, and
I/O interface
erasing options. The CUI also handles requests Supports fast on-board or out-of-system
for data residing in status, ID, and block-lock
programming for manufacturing
registers.
§ Case temprature operating range
Operates with 33-MHz PCI clock and
§ Power supply specifications
3.3 V I/O.
Vcc: 3.3 V ± 0.3 V
§ Industry-standard packages
(40L TSOP or 32L PLCC)
Vpp: 3.3 V and 12 V for fast programming,
(80 hours maximum)
The Intel® 82802 (FWH) firmware hub may contain design defects or errors known as errata that may cause the products to
deviate from published specifications. Current characterized errata are available upon request.
Datasheet
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