Download Hardware Development Guide for i.MX 6SoloLite

Contents
Paragraph
Number
Title
Page
Number
Contents
Chapter 1
Design Checklist
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
Design checklist overview ............................................................................................... 1-1
Design checklist tables..................................................................................................... 1-1
Bus isolation circuit ....................................................................................................... 1-10
DDR reference circuit .................................................................................................... 1-11
I2C clock speed and division factors (IFDR)................................................................. 1-11
JTAG signal termination ................................................................................................ 1-14
Oscillator tolerance ........................................................................................................ 1-14
Unused analog interfaces ............................................................................................... 1-14
Chapter 2
i.MX 6 Series Layout Recommendations
2.1
2.1.1
2.1.2
2.2
2.3
2.4
2.5
2.5.1
2.5.2
2.5.3
2.5.4
2.5.5
2.5.6
2.5.7
2.5.8
2.5.9
2.6
2.7
2.8
2.9
2.10
2.11
2.12
Basic design recommendations........................................................................................ 2-1
Fanout illustrations ...................................................................................................... 2-3
Placing decoupling capacitors ..................................................................................... 2-4
Stackup recommendations ............................................................................................... 2-4
DDR connection information........................................................................................... 2-6
DDR routing rules............................................................................................................ 2-7
Routing considerations .................................................................................................... 2-9
Swapping data lines ..................................................................................................... 2-9
DDR3 (32 bits) T topology considerations.................................................................. 2-9
DDR3 (32 bits) Fly-by topology considerations.......................................................... 2-9
2-Gigabyte recommendations .................................................................................... 2-10
1-Gigabyte recommendations .................................................................................... 2-10
Four chips T topology routing examples ................................................................... 2-12
LPDDR2 FBGA 168 routing example....................................................................... 2-16
High speed signal routing recommendations............................................................. 2-19
Ground plane recommendations ............................................................................... 2-19
DDR power recommendations (for DDR3 only)........................................................... 2-22
USB recommendations .................................................................................................. 2-23
Impedance signal recommendations .............................................................................. 2-23
Reference resistors ......................................................................................................... 2-25
ESD and radiated emissions recommendations ............................................................. 2-25
Component placement recommendations ...................................................................... 2-25
Reducing skew and phase problems in deferential pairs traces..................................... 2-26
Hardware Development Guide for i.MX 6SoloLite Applications Processors, Rev. 1
Freescale Semiconductor
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