M482 datasheet(20/401 Pages) NUVOTON

20 / 401 page

Mar 30, 2018

Page 20 of 401

Rev 1.00

NuMicro

® M480

32-bit ARM

Cortex

-M4F Microcontrolle

 Supports 50 MHz to achieve 200 Mbps at 3.3V operation.

 Supports dedicated DMA master with Scatter-Gather function to

accelerate the data transfer between system memory and

SD/SDHC/SDIO card.

External Bus Interface

(EBI)

 Supports up to three memory banks with individual adjustment of

timing parameter.

 Each bank supports dedicated external chip select pin with polarity

control and up to 1 MB addressing space.

 8-/16-bit data width.

 Supports byte write in 16-bit data width mode.

 Configurable idle cycle for different access condition: Idle of Write

command finish (W2X) and Idle of Read-to-Read (R2R).

 Supports Address/Data multiplexed mode.

 Supports address bus and data bus separate mode.

 Supports LCD interface i80 mode.

 PDMA operation.

GPIO

 Supports three I/O modes: Push-Pull output, Open-Drain output and

Input only with high impendence mode.

 Selectable TTL/Schmitt trigger input.

 Configured as interrupt source with edge/level trigger setting.

 Supports independent pull-up/pull-down control.

 Supports high driver and high sink current I/O.

 Supports software selectable slew rate control.

 Supports 5V-tolerance function except analog I/O.

Control Interfaces

Quadrature Encoder

Interface (QEI)

 Two QEI phase inputs (QEI_A, QEI_B) and one Index input

(QEI_INDEX).

 Supports 2/4 times free-counting mode and 2/4 compare-counting

mode.

 Supports encoder pulse width measurement mode with ECAP.

Enhanced Capture (ECAP)

Input Capture Timer/Counter

 Supports three input channels with independent capture counter

hold register.

 24-bit Input Capture up-counting timer/counter supports captured

events reset and/or reload capture counter.

 Supports rising edge, falling edge and both edge detector options

with noise filter in front of input ports.

 Supports compare-match function.

Advanced Connectivity

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