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Structure size:unit(mm))

 

CPU introduction

• i.MX28 series of multi-media application processor is the latest member of Freescale ARM9 series of items.i.MX28 series of items combine unique display,power management and connection speciaty based on ARM9,reduce the cost and complexity of system for the application sensitive to the budget.

• Tool and software easily used will facilitate you designing unique products in terms of industrial control and consumer electronics in a shorter period of time, i.MX28 features optimized function and power consumption,which is very suitable to be used in the systems without fans and portable devices powered by battery. It provide multiple options for connection functions,including dual 10/100 ethernet(support IEEE?1588) based on L2 exchange function.which can meet the special demands in industrial application,moreover,its connection functions of CAN,USB and ethernet can completely meet the demands in automotive industry.

• i.MX28 care about the overall cost of system, it combines physical USB interface(PHY),10/100 ethernet,power management and displayed controller in resistance touch screen,so it can provide economic and highly effective solutions for products in automotive grade.e.g it can used for monitor in highway toll station,,CAN gateway,accessory of automotive audio)USB or SD card adaptor) and car radio controlled by touch screen.designer can lay out many creative and visual user interfaces through LCD controller with touch screen.

CPU characteristic

1) 454MHz ARM926EJ-S kernel with 16KB/32KB cache.

2) PMU carry highly effective on-chip DC/DC, support li-ion battery

3) Dual 10/100 l IEEE ® 1588 ethernet，provide support for RMII and L2 exchange function

4) Dual CAN interface 

5) LCD controller with touch screen

6) NAND support – SLC/MLC and eMMC 4.4 manageable.

7) Hardware BCH (up to 20 bit correction ) 

8) 200 MHz 16 位 DDR2, LV-DDR2, mDDR supported by external storage.

9) Carry embed PHY dual high speed USB.

10) 8 universal 12 bit ADC channel and one 2 Msps ADC channel.

11) With temperature sensor, to provide thermal protection.

12) A few kinds of connection interface (UARTs, SSP, SDIO, SPI, I2C, I2S)

13) 3.3V I/O，10 years of service life (industrial control).

14) Package and temperature 

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  • 289 BGA 14x14mm .8mm

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  • -40C to +85C (industrial control)

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15) These items are included in long term supply by Freescale,who guarantee at least 15 years' supply from the day one of marketing.

16) Core board adopt stamp hole to guarantee stability and credability of high speed signal and ensure a nice connectivity,which can withstand violent shock and can completely meet the test of violent shock in harsh environment for industry and automobile.

Configuration of core board

CPU	I.MX287	Compatible to other series of I.MX28
Memory	DDR2 128MB
Storage	128MB NandFlash	Compatible to 4GB
Power management	Management of internal integrated power

Operating system support

Linux 2.6.35，Wince6.0

Working temperature

Expansion industrial：-20°C ---85°C 
Industrial：-40°C ---85°C
Automotive：-40°C ---85°C

Instruction of interface led out by core board and comparison with Samsung 2416

Function	I.MX287	I.MX283	S3C2416
SRAM	128KBytes	128KBytes	64 KBytes
ROM	128KBytes	128KBytes	32 KBytes
Main frequency	454M	454M	400M
Watch dog	YES	YES	YES
Application serial port	5 way	5 way	3 way
Debug serial port	1 way	1 way	1 way
CAN	2 way	——	——
Ethernet	2 way	1 way	Need bus expansion
High speed ADC	1 way	1 way	——
L2 Switch	YES	——	——
LCD	18/24 bit	18/24 bit	18/24 bit
LRADC	8 way	8 way	10 way
PWM	8 way	8 way	4 way
S/PIDF TX	YES	——	——
SD/SDIO/MMC	4 way	4 way	2 way
security	YES	YES	NO
SPI	4 way	4 way	1 way
Touch	YES	YES	YES
USBHOST	1 way	1 way	1 way
I2C	2 way	2 way	1 way
USBOTG	1 way	1 way	1 way
Audio	1 way	1 way	1 way
GPIO	Multiple way	multiple way	multiple way
PMU	YES	YES	NO
Overheat protection	YES	YES	NO
Standard in industrial grade	YES	YES	NO
Package space	0.8mm	0.8 mm	0.65 mm
Supply period	15 years	15 years	discontinued at anytime

Definition of pin

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