查看“MYZR-I.MX28-CORE介绍”的源代码

= '''正面视图(top view)'''=
[[文件:iMX28_CORE_1.jpg|642px]]<br>


= '''CPU简介(CPU introduction)'''=
　　i.MX28系列多媒体应用处理器是飞思卡尔ARM9产品系列的最新成员。i.MX28系列在基于ARM9的器件中集成了无与伦比的显示、电源管理和连接特性，降低了成本敏感型应用的系统成本和复杂性。<br>
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　　易于使用的工具和软件帮助您以更短的时间设计出与众不同的工业控制和消费电子产品。i.MX28具有优化的性能和功耗，非常适合无风扇系统或由电池供电的便携式设备。它提供多种连接功能供您选择，其中包括带L2交换功能的双10/100以太网(支持IEEE? 1588)，可满足工业应用的特定需求。另外，CAN、USB和以太网连接功能，完全符合AECQ100汽车行业要求。i.MX28关注总体系统成本，集成了物理USB接口(PHY)、10/100 以太网、电源管理和电阻式触摸屏显示控制器。通过这些特性，i.MX28为汽车级产品提供了经济高效的解决方案，例如可以实现公路收费站监控器、CAN网关、汽车音响配件(USB或SD卡适配器)和触摸屏控制的车载收音机。带有触摸屏功能的LCD控制器使设计人员能够设计出许多应用需要的具有创意性的、直观的用户界面。<br>
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[[文件:iMX28_CORE_2.jpg|642px]]<br>


= '''CPU特性(CPU characteristic)'''=
*带有 16KB/32KB 缓存的 454MHz ARM926EJ-S内核<br>
<span style="background:#CCCCCC">454MHz ARM926EJ-S kernel with 16KB/32KB cache</span><br>
*PMU 带有高效片上DC/DC，支持锂离子电池<br>
<span style="background:#CCCCCC">PMU carry highly effective on-chip DC/DC, support li-ion battery</span><br>
*10/100 双l IEEE? 1588 以太网，提供RMII 支持和 L2 交换功能<br>
<span style="background:#CCCCCC">dual 10/100  l IEEE? 1588 ethernet，provide support for RMII and  L2 exchange function</span><br>
*双CAN接口<br>
<span style="background:#CCCCCC">dual CAN interface</span><br>
*带触摸屏的 LCD 控制器<br>
<span style="background:#CCCCCC">LCD controller with toch screen</span><br>
*NAND 支持 – SLC/MLC 和 eMMC 4.4 可管理<br>
<span style="background:#CCCCCC">NAND support – SLC/MLC and eMMC 4.4 managable</span><br>
*硬件 BCH (高达 20 位校正 )<br>
<span style="background:#CCCCCC">hardware BCH (up to 20 bit correction )</span><br>
*200 MHz 16 位 DDR2, LV-DDR2, mDDR 外部存储器支持<br>
<span style="background:#CCCCCC">200 MHz 16 位 DDR2, LV-DDR2, mDDR supported by external storage</span><br>
*带有嵌入式 PHY 的高速双 USB<br>
<span style="background:#CCCCCC">carry emded PHY dual high speed USB</span><br>
*8 个通用 12 位 ADC 通道和单个 2 Msps ADC通道<br>
<span style="background:#CCCCCC">8 universila 12 bit ADC channel and one 2 Msps ADC channel</span><br>
*带温度传感器，提供热保护<br>
<span style="background:#CCCCCC">with temperature sensor, to provide thermalprotection</span><br>
*多种连接端口 (UARTs, SSP, SDIO, SPI, I2C, I2S)<br>
<span style="background:#CCCCCC">a few kinds of connection interface</span><br>
*3.3V I/O，10 年使用寿命 (工业控制)<br>
<span style="background:#CCCCCC">3.3V I/O，10 years of service life (industrial control)</span><br>
*封装和温度<br>
<span style="background:#CCCCCC">package and temperature</span><br>
**	289 BGA 14x14mm .8mm<br>
**	-40C 至 +85C (工业控制)<br>
<span style="background:#CCCCCC">-40C to +85C (indutrial control)</span><br>
*本产品包含在飞思卡尔产品长期供货计划中，自推出后至少保证15 年供货<br>
<span style="background:#CCCCCC">these items are included in long term supply by Freescale,who graurantee at least 15 years' supply from the day one of marketing.</span><br>
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　　核心板采用邮票孔，保证高速信号的稳定可靠，保证良好的连接性能，能够抵抗剧烈的震动，完全能够满足工业，汽车等恶劣环境的剧烈震动测试。<br>
<span style="background:#CCCCCC">core board adopt stample hole to gaurantee stability and credability of high speed signal and ensure a nice connectivity,which can withstand violent shock and can competely meet the test of violent shock in harsh environment for industry and automobile.</span><br>


= '''核心板配置(confiruation of core board)'''=
{| class="wikitable"
!CPU 
!I.MX287 
!兼容I.MX28其他系列<br>(compatible to other series of I.MX28)
|-
|内存<br>(memory) ||DDR2 128MB ||
|-
|存储<br>(storage) ||128MB NandFlash ||兼容至4GB<br>(compatible to 4GB)
|-
|电源管理<br>(power management) ||内部集成电源管理<br>(management of internal integrated power) ||
|}


= '''操作系统支持(operating system support)'''=
Linux 2.6.35，Wince6.0<br>

= '''工作温度(working temperature)'''=
扩展消费级：-20°C ---85°C<br>
<span style="background:#CCCCCC">expansion industrial：-20°C ---85°C</span><br>
工业级：-40°C ---85°C<br>
<span style="background:#CCCCCC">industrial：-40°C ---85°C</span><br>
汽车级：-40°C ---85°C<br>
<span style="background:#CCCCCC">automotive：-40°C ---85°C</span><br>

= '''核心板引出接口说明以及跟三星2416的比较<br>(instruction of interface led out by core board and comparision with Samsung 2416)'''=
{| class="wikitable"
!功能<br>(function) 
!I.MX287 
!I.MX283 
!S3C2416
|-
|SRAM ||128KBytes ||128KBytes ||64 KBytes
|-
|ROM ||128KBytes ||128KBytes ||32 KBytes
|-
|主频<br>(main frequency) ||454M ||454M ||400M
|-
|Watch dog ||YES ||YES ||YES
|-
|应用串口<br>(application serial port) ||5路<br>(5 ways) ||5路<br>(5 ways) ||3路<br>(3 ways)
|-
|调试串口<br>(debug serial port) ||1路<br>(1 ways) ||1路<br>(1 ways) ||1路<br>(1 ways)
|-
|CAN ||2路<br>(2 ways) ||—— ||——
|-
|以太网<br>(ethernet) ||2路<br>(2 ways) ||1路<br>(1 ways) ||需要总线扩展<br>(need bus expansion)
|-
|高速ADC<br>(high speed ADC) ||1路<br>(1 ways) ||1路<br>(1 ways) ||——
|-
|L2 Switch ||YES ||—— ||——
|-
|LCD ||18/24 bit ||18/24 bit ||18/24 bit
|-
|LRADC ||8路<br>(8 ways) ||8路<br>(8 ways) ||10路<br>(10 ways)
|-
|PWM ||8路<br>(8 ways) ||8路<br>(8 ways) ||4路<br>(4 ways)
|-
|S/PIDF TX ||YES ||—— ||——
|-
|SD/SDIO/MMC ||4路<br>(4 ways) ||4路<br>(4 ways) ||2路<br>(2 ways)
|-
|安全<br>(security) ||YES ||YES ||NO
|-
|SPI ||4路<br>(4 ways) ||4路<br>(4 ways) ||1路<br>(1 ways)
|-
|触摸<br>(touch) ||YES ||YES ||YES
|-
|USBHOST ||1路<br>(1 ways) ||1路<br>(1 ways) ||1路<br>(1 ways)
|-
|I2C ||2路<br>(2 ways) ||2路<br>(2 ways) ||1路
|-
|USBOTG ||1路<br>(1 ways)||1路<br>(1 ways)||1路
|-
|音频<br>(audio) ||1路<br>(1 ways)||1路<br>(1 ways)||1路<br>(1 ways)
|-
|GPIO ||若干路<br>(multiple way) ||若干路<br>(multiple way) ||若干路<br>(multiple way)
|-
|PMU ||YES ||YES ||NO
|-
|过热保护<br>(overheat protection) ||YES ||YES ||NO
|-
|工业级标准<br>(standard in industrial grade) ||YES ||YES ||NO
|-
|封装间距<br>(package space) ||0.8mm ||0.8 mm ||0.65 mm
|-
|供货周期<br>(suppy period) ||15年<br>(15 years) ||15年<br>(15 years) ||随时停产<br>(discontinured at anytime)
|}


= '''管脚定义(definition of pin)'''=
{| class="wikitable"
|1 ||GND ||72 ||GND
|-
|2 ||USB_0_DP ||73 ||AUART0_RX
|-
|3 ||USB_0_DM ||74 ||AUART0_TX
|-
|4 ||GND ||75 ||AUART0_CTS
|-
|5 ||PWRGATE_SSP1 ||76 ||AUART0_RTS
|-
|6 ||PWRGATE_SSP0 ||77 ||PWM1
|-
|7 ||USB_0_ID ||78 ||PWM0
|-
|8 ||USB_0_OC ||79 ||DUART_RX
|-
|9 ||USB_0_PWR_EN ||80 ||DUART_TX
|-
|10 ||USB_1_PWR_EN ||81 ||AUART3_TX
|-
|11 ||USB_1_OC ||82 ||AUART3_RTS
|-
|12 ||GND ||83 ||AUART3_RX
|-
|13 ||USB_1_DM ||84 ||AUART3_CTS
|-
|14 ||USB_1_DP ||85 ||I2C_INT
|-
|15 ||GND ||86 ||LCD_PWR_EN
|-
|16 ||I2C0_SDA ||87 ||LCD_D07
|-
|17 ||I2C0_SCL ||88 ||LCD_D08
|-
|18 ||SPDIF_OUT ||89 ||LCD_D10
|-
|19 ||SAIF1_SDATA0 ||90 ||LCD_D11
|-
|20 ||SAIF0_SDATA0 ||91 ||LCD_D12
|-
|21 ||SAIF0_BITCLK ||92 ||LCD_D13
|-
|22 ||SAIF0_MCLK ||93 ||LCD_D14
|-
|23 ||SAIF0_LRCLK ||94 ||LCD_D16
|-
|24 ||SSP0_DATA1 ||95 ||LCD_D15
|-
|25 ||GND ||96 ||LCD_D19
|-
|26 ||SSP0_SCK ||97 ||LCD_D18
|-
|27 ||GND ||98 ||LCD_D22
|-
|28 ||SSP0_DATA0 ||99 ||LCD_D21
|-
|29 ||SSP0_DATA3 ||100 ||LCD_D00
|-
|30 ||SSP0_DATA2 ||101 ||LCD_WR_RWN
|-
|31 ||SSP0_CMD ||102 ||LCD_D01
|-
|32 ||SD0_WP ||103 ||SAIF1_SDATA1_CONN
|-
|33 ||SSP0_DATA4 ||104 ||SAIF1_SDATA0_CONN
|-
|34 ||SSP0_DATA7 ||105 ||SAIF1_MCLK_CONN
|-
|35 ||GND ||106 ||LCD_D02
|-
|36 ||SSP0_DATA5 ||107 ||LCD_D03
|-
|37 ||SSP0_DATA6 ||108 ||LCD_D04
|-
|38 ||SSP0_DETECT ||109 ||LCD_D05
|-
|39 ||GPIO2_24 ||110 ||LCD_D06
|-
|40 ||GPIO2_26 ||111 ||LCD_RS
|-
|41 ||CAN_PWDN ||112 ||LCD_D17
|-
|42 ||GPIO2_25 ||113 ||LCD_D09
|-
|43 ||HEADPHONE_DETECT ||114 ||LCD_D20
|-
|44 ||GPIO2_27 ||115 ||LCD_RD_E
|-
|45 ||SSP2_SCK ||116 ||LCD_D23
|-
|46 ||SSP2_MISO ||117 ||LCD_CS
|-
|47 ||SSP2_MOSI ||118 ||BACKLIGHT_PWM
|-
|48 ||SSP2_SS0 ||119 ||CAN_TX_1
|-
|49 ||SSP2_SS2 ||120 ||CAN_RX_1
|-
|50 ||SAIF1_BITCLK/I2C1_SCL ||121 ||CAN_TX_0
|-
|51 ||SAIF1_LRCLK/I2C1_SDA ||122 ||CAN_RX0_HSADC_TRIGGER
|-
|52 ||ENET0_RX_EN ||123 ||RESETN
|-
|53 ||ENET0_TX_EN ||124 ||PSWITCH
|-
|54 ||ENET_MDC ||125 ||LRADC5
|-
|55 ||ENET_MDIO ||126 ||LRADC4
|-
|56 ||ENET0_RXD1 ||127 ||LRADC3
|-
|57 ||ENET0_RXD0 ||128 ||LRADC2
|-
|58 ||FEC_PWR_EN ||129 ||LRADC0
|-
|59 ||GND ||130 ||HSADC0
|-
|60 ||ENET_CLK ||131 ||LRADC6
|-
|61 ||GND ||132 ||LRADC1
|-
|62 ||ENET0_TXD0 ||133 ||VDDXTAL
|-
|63 ||ENET0_TXD1 ||134 ||rowspan=3|LI-ION_BATTERY
|-

|-
|64 ||ENET_INT ||135 
|-
|65 ||ENET_FEC_RESET_B ||136 
|-
|66 ||ENET1_TXD0 ||137 ||rowspan=2|WALL_5V_IN
|-
|67 ||ENET1_TXD1 ||138 
|-
|68 ||ENET1_RXD0 ||139 ||rowspan=3|VDDIO_3V3
|-
|69 ||ENET1_RXD1 ||140 
|-
|70 ||ENET1_RX_EN ||141 
|-
|71 ||ENET1_TX_EN ||142 ||GND
|}


= '''结构尺寸：单位（mm）(structure size:unit(mm))'''=
[[文件:IMX28_CORE_3.jpg|642px]]<br>