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MEC1322 bảng dữ liệu(PDF) 145 Page - Microchip Technology

tên linh kiện MEC1322
Giải thích chi tiết về linh kiện  Keyboard and Embedded Controller for Notebook PC
PDF  456 Pages
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nhà sản xuất  MICROCHIP [Microchip Technology]
Trang chủ  http://www.microchip.com
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MEC1322 bảng dữ liệu(HTML) 145 Page - Microchip Technology

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 2014 - 2015 Microchip Technology Inc.
DS00001719D-page 145
MEC1322
11.0 8042 EMULATED KEYBOARD CONTROLLER
11.1
Introduction
The MEC1322 keyboard controller uses the EC to produce a superset of the features provided by the industry-standard
8042 keyboard controller. The 8042 Emulated Keyboard Controller is a Host/EC Message Interface with hardware
assists to emulate 8042 behavior and provide Legacy GATEA20 support.
11.2
References
There are no references for this block.
11.3
Interface
This block is designed to be accessed externally via the pin interface and internally via a registered host interface.
11.4
Signal Description
Note:
There is no VCC emulation in hardware for this interface.
FIGURE 11-1:
I/O DIAGRAM OF BLOCK
TABLE 11-1:
SIGNAL DESCRIPTION TABLE
Name
Direction
Description
KBRST
Output
Keyboard Reset, routed to pin
8042 Emulated Keyboard Controller
Signal Description
Clock Inputs
Interrupts
Resets
Host Interface



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