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NUC230-LB2N Datasheet(Fiches technique) 67 Page - Nuvoton Technology Corporation

Numéro de pièce NUC230-LB2N
Description  ARM® Cortex®-M 32-bit Microcontroller
Télécharger  107 Pages
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Fabricant  NUVOTON [Nuvoton Technology Corporation]
Site Internet  http://www.nuvoton.com
Logo NUVOTON - Nuvoton Technology Corporation

NUC230-LB2N Datasheet(HTML) 67 Page - Nuvoton Technology Corporation

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NUC100/120xxxDN
Aug 31, 2015
Page 67 of 107
Rev 1.01
External Bus Interface (EBI)
6.5
6.5.1
Overview
The NuMicro
® NUC100 series LQFP-64 and LQFP-100 package is equipped with an external bus
interface (EBI) for accessing an external device.
To save the connections between external device and this chip, EBI supports address bus and
data bus multiplex mode. And, address latch enable (ALE) signal is used to differentiate the
address and data cycle.
6.5.2
Features
External Bus Interface has the following functions:
Supports external devices with max. 64 KB size (8-bit data width)/128 KB (16-bit data
width)
Supports variable external bus base clock (MCLK) which based on HCLK
Supports 8-bit or 16-bit data width
Supports variable data access time (tACC), address latch enable time (tALE) and
address hold time (tAHD)
Supports address bus and data bus multiplex mode to save the address pins
Supports configurable idle cycle for different access condition: Write command finish
(W2X), Read-to-Read (R2R)


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