第3章 Overview

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第3章 Overview

目次

3.1. Board Overview
3.2. Block Diagram

3.1. Board Overview

The main specifications of the Armadillo-400 Series are as follows.

表3.1 Armadillo-400 Series Board Specifications

	Armadillo-420	Armadillo-440
Processor	Freescale i.MX257 (MCIMX257)
Processor Functions	ARM926EJ-S Core Instruction / Data Cache: 16KByte / 16KByte Internal SRAM: 128KByte Thumb code (16bit instruction set) support
System Clock	CPU Core Clock: 400MHz BUS Clock: 133MHz Oscillator Clock: 32.768kHz, 24MHz
SDRAM	LPDDR SDRAM: 64MByte (16bit width) Micron MT46H64M16LFCK-6 IT	LPDDR SDRAM: 128MByte (16bit width) Micron MT46H32M16LFBF-6 IT
Flash Memory	NOR Flash Memory: 16MByte (16bit width) Numonyx PC28F128P30BF Maximum Write Cycles: 100,000	NOR Flash Memory: 32MByte (16bit width) Numonyx PC28F256P30BF Maximum Write Cycles: 100,000
Ethernet	10BASE-T/100BASE-TX with AUTO-MDIX
Serial (UART)	3 channels max^[a] UART2: RS232C level flow control pins (CTS, RTS, DTR, DSR, DCD, RI) Max baud rate: 230.4kbps UART3^[b]/UART5^[b]: +3.3V CMOS levels flow control pins (CTS, RTS) Max baud rate: 4Mbps	4 channels max^[a] UART2: RS232C level flow control pins (CTS, RTS, DTR, DSR, DCD, RI) Max baud rate: 230.4kbps UART3^[b]/UART4^[c]/UART5^[b]: +3.3V CMOS levels flow control pins (CTS, RTS) Max baud rate: 4Mbps
USB	2 channels (USB 2.0, Host) USBOTG (USBPHY1): High Speed support Type-A connector (lower port) USBHOST (USBPHY2): Full Speed support Type-A connector (upper port)
SD/MMC	2 channels max^[a] SDHC1: microSD slot SDHC2^[b]: pin header
LCD I/F		Max resolution: SVGA (800x600), 18bpp Connector Type: 50 pin FFC connector (0.5mm pitch)
Touch Panel I/F		4-Wire Resistive
Expansion I/F	Audio I2S: 1 channel max^[a](AUD6^[b]) I2C： 1 channel max^[a](I2C2^[d]) SPI: 2 channels max^[a](CSPI1^[b], CSPI3^[b]) GPIO: 24bit max^[a]	Audio I2S: 2 channels max^[a](AUD5^[c], AUD6^[b]) I2C: 2 channels max^[a](I2C2^[d], I2C3^[c]) SPI: 2 channels max^[a](CSPI1^[b], CSPI3^[b]) Keypad Interface: 4 x 6 matrix (24 keys) max^[a]^[c] GPIO: 35bit max^[a]
Switch	Tact Switch x1
LED	Red LED (φ3mm) x 1 Green LED (φ3mm) x 1 Yellow LED (surface mount) x 1
Debug I/F	8 pin (2.54mm pitch)^[e]
Board Size	75.0 x 50.0mm (excluding protrusions)
Power Supply Voltage	DC3.1 - 5.25V^[f]
Power Consumption	1.2W approx.^[g]	1.2W approx. (Armadillo-440 only)^[g] 2.0W approx. (Armadillo-440 with LCD Expansion Board)^[g]
Operating Temperature	-20 - 70℃ (with no condensation)
^[a]This is the number of channels available when the signal multiplex function on the i.MX257 is configured giving the most priority to this function. ^[b]It is possible to assign this function to Expansion Interface 1 (CON9) with the signal multiplex function on i.MX257. ^[c]It is possible to assign this function to the LCD Interface (CON11) with the signal multiplex function on i.MX257. ^[d]It is possible to assign this function to Expansion Interface 2 (CON14) with the signal multiplex function on i.MX257. ^[e]It is possible to convert this interface to the standard ARM 20 pin layout with the JTAG Conversion Cable (OP-JC8P25-00) option. For details, please see 付録A JTAG Conversion Cable (OP-JC8P25-00). ^[f]There are certain limits to USB device supply current when operating on a voltage less than 4.75V. Please see 「CON5, CON6 (USB Interface)」 for more details. ^[g]Does not include USB and SD device power consumption.

3.2. Block Diagram

The Armadillo-400 Series block diagram is shown below.

Armadillo-400 Series Block Diagram

図3.1 Armadillo-400 Series Block Diagram


第2章 Precautions	PDF version	第4章 Memory Map