Introduction
Table 2 provides the functional differences between the i.MX280, i.MX283, i.MX286, and i.MX287.
Table 2. i.MX28 Functional Differences
Function
i.MX280
i.MX283
i.MX286
i.MX287
Application UART
x5
x5
x5
x5
Debug UART
x1
x1
x1
x1
CAN
—
—
x2
x2
Ethernet
x1
x1
x1
x2
High-speed ADC
x1
x1
x1
x1
L2 Switch
—
—
—
Yes
LCD Interface
—
Yes
LRADC1
x8
x8
Yes
Yes
x8
x8
PWM
x8
x8
x8
x8
S/PDIF Tx
—
—
SD/SDIO/MMC2
x4
x4
Yes
Yes
x4
x4
Security
Yes
Yes
Yes
Yes
SPI
x4
x4
x4
x4
Touch Screen
—
Yes
Yes
Yes
USB 2.0
OTG HS with OTG HS with HS PHY x1
HS PHY x1
OTG HS with HS PHY x1 OTG HS with HS PHY x1
HS Host with HS Host with HS PHY x1
HS PHY x1
HS Host with HS PHY x1 HS Host with HS PHY x1
1 There are 16 physical channels but they can only be mapped to 8 virtual channels at a time.
2 For SD/SDIO/MMC, four synchronous serial ports (SSP) are available: SSP0, SSP1, SSP2, and SSP3. SSP0 and SSP1 can
support three modes,1-bit, 4-bit, and 8-bit, whereas SSP2 and SSP3 can support only 1-bit and 4-bit modes.
i.MX28 Applications Processors for Consumer Products, Rev. 3
4
Freescale Semiconductor