MYZR-I.MX28-CORE介绍
======================

正面视图
---------

.. figure:: /image/MYZR-其他/MYZR-IMX28-EK142/IMX28_CORE_1.jpg
   :alt: IMX28_CORE_1.jpg

结构尺寸：单位（mm）
---------------------

.. figure:: /image/MYZR-其他/MYZR-IMX28-EK142/IMX28_CORE_3.jpg
   :alt: IMX28_CORE_3.jpg

CPU简介
---------

- 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。
- 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。

.. figure:: /image/MYZR-其他/MYZR-IMX28-EK142/IMX28_CORE_2.jpg
   :alt: IMX28_CORE_2.jpg

CPU特性
---------

|  1）带有 16KB/32KB 缓存的 454MHz ARM926EJ-S内核
|  2）PMU 带有高效片上DC/DC，支持锂离子电池
|  3）10/100 双l IEEE ® 1588 以太网，提供RMII 支持和 L2 交换功能
|  4）双CAN接口
|  5）带触摸屏的 LCD 控制器
|  6）NAND 支持 – SLC/MLC 和 eMMC 4.4 可管理
|  7）硬件 BCH (高达 20 位校正 )
|  8）200 MHz 16 位 DDR2, LV-DDR2, mDDR 外部存储器支持
|  9）带有嵌入式 PHY 的高速双 USB
|  10）8 个通用 12 位 ADC 通道和单个 2 Msps ADC通道
|  11）带温度传感器，提供热保护
|  12）多种连接端口 (UARTs, SSP, SDIO, SPI, I2C, I2S)
|  13）3.3V I/O，10 年使用寿命 (工业控制)
|  14）封装和温度
|  289 BGA 14x14mm .8mm
|  -40C 至 +85C (工业控制)
|  15）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
|  16）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。

核心板配置
-----------

+----------+------------------+--------------------+
| CPU      | I.MX287          | 兼容I.MX28其他系列 |
+==========+==================+====================+
| 内存     | DDR2 128MB       |                    |
+----------+------------------+--------------------+
| 存储     | 128MB NandFlash  | 兼容至4GB          |
+----------+------------------+--------------------+
| 电源管理 | 内部集成电源管理 |                    |
+----------+------------------+--------------------+

操作系统支持
-------------

|  Linux 2.6.35，Wince6.0

工作温度
---------

|  商业级：0°C ---70°C
|  工业级：-40°C ---85°C

存储温度
---------

|  -60°C ---125°C

硬件接口
----------

+--------------+----------+--------------------------+-------------------------------------------------------------------------------------+
| 接口规格                | 最大可配置接口数         | 描述                                                                                |
+--------------+----------+--------------------------+-------------------------------------------------------------------------------------+
| 通讯接口     | Ethernet | 2                        | 2路10/100Mbps以太网，符合IEEE1588                                                   |
+              +----------+--------------------------+-------------------------------------------------------------------------------------+
|              | USB2.0   | 2                        | 1路高速USB 2.0 OTG，1路 USB2.0 HOST（最高480 Mbps），带有集成的HS USB PHY           |
+              +----------+--------------------------+-------------------------------------------------------------------------------------+
|              | UART     | 6                        | 6路UART，5路应用串口，每路应用串口可达到 3.25Mbps；1路调试串口，最高可以达到115Kb/s |
+              +----------+--------------------------+-------------------------------------------------------------------------------------+
|              | CAN      | 2                        | 支持 CAN2.0B 协议                                                                   |
+              +----------+--------------------------+-------------------------------------------------------------------------------------+
|              | I2C      | 2                        | 2路I2C，最高可支持400 kbps                                                          |
+              +----------+--------------------------+-------------------------------------------------------------------------------------+
|              | SPI      | 4                        | 4路SPI                                                                              |
+              +----------+--------------------------+-------------------------------------------------------------------------------------+
|              | ADC      | 9                        | "8路12bit LRADC ，总共16通道；                                                      |
+              +          +                          +                                                                                     +
|              |          |                          | 1路高速HSADC，最高速度可 达2Msps"                                                   |
+              +----------+--------------------------+-------------------------------------------------------------------------------------+
|              | PWM      | 8                        | 8路PWM                                                                              |
+              +----------+--------------------------+-------------------------------------------------------------------------------------+
|              | Timer    | 4                        | 4个 32bit 定时器                                                                    |
+--------------+----------+--------------------------+-------------------------------------------------------------------------------------+
| 外部存储接口 | SD/SDIO  | 3                        | 3路SD和SDIO，相应支持1bit，4bit，8bit                                               |
+--------------+----------+--------------------------+-------------------------------------------------------------------------------------+
| 多媒体       | LCD      | 1                        | 分辨率高达800x480，支持 16/18/24位显示                                              |
+--------------+----------+--------------------------+-------------------------------------------------------------------------------------+
| SAIF         | 2        | 支持全双工发送和接收操作 |                                                                                     |
+--------------+----------+--------------------------+-------------------------------------------------------------------------------------+

**= 核心板引出接口说明以及跟三星2416的比较=**

+-------------+-----------+-----------+--------------+
| 功能        | I.MX287   | I.MX283   | S3C2416      |
+=============+===========+===========+==============+
| SRAM        | 128KBytes | 128KBytes | 64 KBytes    |
+-------------+-----------+-----------+--------------+
| ROM         | 128KBytes | 128KBytes | 32 KBytes    |
+-------------+-----------+-----------+--------------+
| 主频        | 454M      | 454M      | 400M         |
+-------------+-----------+-----------+--------------+
| Watch dog   | YES       | YES       | YES          |
+-------------+-----------+-----------+--------------+
| 应用串口    | 5路       | 5路       | 3路          |
+-------------+-----------+-----------+--------------+
| 调试串口    | 1路       | 1路       | 1路          |
+-------------+-----------+-----------+--------------+
| CAN         | 2路       | ——        | ——           |
+-------------+-----------+-----------+--------------+
| 以太网      | 2路       | 1路       | 需要总线扩展 |
+-------------+-----------+-----------+--------------+
| 高速ADC     | 1路       | 1路       | ——           |
+-------------+-----------+-----------+--------------+
| L2 Switch   | YES       | ——        | ——           |
+-------------+-----------+-----------+--------------+
| LCD         | 18/24 bit | 18/24 bit | 18/24 bit    |
+-------------+-----------+-----------+--------------+
| LRADC       | 8路       | 8路       | 10路         |
+-------------+-----------+-----------+--------------+
| PWM         | 8路       | 8路       | 4路          |
+-------------+-----------+-----------+--------------+
| S/PIDF TX   | YES       | ——        | ——           |
+-------------+-----------+-----------+--------------+
| SD/SDIO/MMC | 4路       | 4路       | 2路          |
+-------------+-----------+-----------+--------------+
| 安全        | YES       | YES       | NO           |
+-------------+-----------+-----------+--------------+
| SPI         | 4路       | 4路       | 1路          |
+-------------+-----------+-----------+--------------+
| 触摸        | YES       | YES       | YES          |
+-------------+-----------+-----------+--------------+
| USBHOST     | 1路       | 1路       | 1路          |
+-------------+-----------+-----------+--------------+
| I2C         | 2路       | 2路       | 1路          |
+-------------+-----------+-----------+--------------+
| USBOTG      | 1路       | 1路       | 1路          |
+-------------+-----------+-----------+--------------+
| 音频        | 1路       | 1路       | 1路          |
+-------------+-----------+-----------+--------------+
| GPIO        | 若干路    | 若干路    | 若干路       |
+-------------+-----------+-----------+--------------+
| PMU         | YES       | YES       | NO           |
+-------------+-----------+-----------+--------------+
| 过热保护    | YES       | YES       | NO           |
+-------------+-----------+-----------+--------------+
| 工业级标准  | YES       | YES       | NO           |
+-------------+-----------+-----------+--------------+
| 封装间距    | 0.8mm     | 0.8 mm    | 0.65 mm      |
+-------------+-----------+-----------+--------------+
| 供货周期    | 15年      | 15年      | 随时停产     |
+-------------+-----------+-----------+--------------+

管脚定义
----------

+-----+-----------------------+-----+-----------------------+
| 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 | LI-ION_BATTERY        |
+-----+-----------------------+-----+-----------------------+
| 64  | ENET_INT              | 135 |                       |
+-----+-----------------------+-----+-----------------------+
| 65  | ENET_FEC_RESET_B      | 136 |                       |
+-----+-----------------------+-----+-----------------------+
| 66  | ENET1_TXD0            | 137 | WALL_5V_IN            |
+-----+-----------------------+-----+-----------------------+
| 67  | ENET1_TXD1            | 138 |                       |
+-----+-----------------------+-----+-----------------------+
| 68  | ENET1_RXD0            | 139 | VDDIO_3V3             |
+-----+-----------------------+-----+-----------------------+
| 69  | ENET1_RXD1            | 140 |                       |
+-----+-----------------------+-----+-----------------------+
| 70  | ENET1_RX_EN           | 141 |                       |
+-----+-----------------------+-----+-----------------------+
| 71  | ENET1_TX_EN           | 142 | GND                   |
+-----+-----------------------+-----+-----------------------+