| |
i.MX27L |
i.MX27 |
i.MX31L |
i.MX31 |
| CPU |
ARM926EJ-S |
ARM926EJ-S |
ARM1136JF-STM |
ARM1136JF-S |
| Speed (CPU/System) |
266—400 MHz/133 MHz |
266—400 MHz/133 MHz |
400–532 MHz/133 MHz |
400–532 MHz/133 MHz |
| I-Cache/D-Cache |
16 KB/16 KB |
16 KB/16 KB |
16 KB/16 KB + Unified 128 KB L2 |
16 KB/16 KB + Unified 128 KB L2 |
| Floating Point |
|
|
Vector Floating Point Unit |
Vector Floating Point Unit |
| Direct Memory Access (DMA) |
16 Channels |
16 Channels |
32 Channels |
32 Channels |
| Embedded SRAM |
45 KB |
45 KB |
16 KB |
16 KB |
| DDR Memory |
Yes |
Yes |
Yes |
Yes |
| Flash Boot |
NAND or NOR |
NAND or NOR |
NAND or NOR |
NAND or NOR |
| Video Acceleration |
|
H.264, MPEG-4, H.263 HW
Encoder and Decoder; |
MPEG4 VGA 30 fps Encode |
MPEG4 VGA 30 fps Encode |
| Image Pre- and Post-Processor |
|
Color Space Conversion,De-Block,De-Ring, Resize |
Color Space Conversion,De-Block,De-Ring, Resize, Rotation |
Color Space Conversion,De-Block,De-Ring, Resize, Rotation |
| 2-D/3-D Graphics |
|
|
|
Integrated 2-D/3-D Proc. Unit with OpenGL Support,Vector Floating Point Unit |
Liquid Crystal Display Controller (LCDC)
Display Size=Typical |
Standard and Smart 720 x 480 |
Standard and Smart 720 x 480 |
Smart, Serial and Parallel Panels, TV Out, 2 Simultaneous Displays 800 x 600 |
Smart, Serial and Parallel Panels, TV Out, 2 Simultaneous Displays 800 x 600 |
| Camera Interface |
CCIR656 |
CCIR657 |
CCIR658 |
CCIR659 |
| Universal Async. Receiver/Transmitter |
6 |
6 |
5 |
4 |
| IrDA |
SIR |
SIR |
SIR , MR, FIR |
SIR , MR, FIR |
| Serial Peripheral Interface (SPI) |
3 CSPI |
3 CSPI |
3 CSPI |
3 CSPI |
Synchronous Serial Interface
Inter-Integrated Circuit Sound (SSI/I2S) |
2 |
2 |
2 |
2 |
| Inter-Integrated Circuit (I2C) |
2 |
2 |
1 |
1 |
| Single-Wire Interface |
Yes |
Yes |
Yes |
Yes |
| Universal Serial Bus (USB) |
High-Speed On-The-Go, High-Speed Host
and Full-Speed Host |
High-Speed On-The-Go, High-Speed Host
and Full-Speed Host |
High-Speed On-The-Go, High-Speed Host
and Full-Speed Host |
High-Speed On-The-Go, High-Speed Host
and Full-Speed Host |
| Ethernet |
Yes |
Yes |
|
|
| Digital (MMC/SD) Controller |
3 |
3 |
2 |
2 |
| PCMCIA/Compact Flash |
Yes |
Yes |
Yes |
Yes |
| Memory Stick® Controller |
|
Yes |
2Pro |
2Pro |
| Hard Disk Drive Interface |
|
Advanced Technology Attachment-6 (ATA-6) |
Advanced Technology Attachment-6 (ATA-6) |
ATA-6 |
| Smart Card Interface Module (SIM) |
|
|
1 |
1 |
| Timer |
6 |
6 |
3 |
3 |
| Watchdog Timer |
Yes |
Yes |
Yes |
Yes |
| Real-Time Clock |
1 |
1 |
1 |
1 |
| Pulse Width Modulation (PWM) |
1 |
1 |
1 |
1 |
| Process Technology |
90nm |
90nm |
90nm |
90nm |