MCIMX31LITEKITC Freescale Semiconductor, MCIMX31LITEKITC Datasheet - Page 21

• Manufacturer Part Number: MCIMX31LITEKITC
• Description: BOARD DEV FOR I.MX31
• Manufacturer: Freescale Semiconductor
• Type: MCUr

Specifications of MCIMX31LITEKITC

• Contents: Module and Misc Hardware
• For Use With/related Products: i.MX31
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Freescale Semiconductor
NVCC2, NVCC21, NVCC22
IOQVDD, NVCC1, NVCC3–10, NVCC2, NVCC21, NVCC22
IOQVDD, NVCC1, NVCC3–10
FVCC, MVCC, SVCC, UVCC
QVCC, QVCC1, QVCC4
QVCC, QVCC1, QVCC4
Figure 3. Option 1 Power-Up Sequence (Silicon Revision 2.0)
Hold POR Asserted
Figure 4. Option 2 Power-Up Sequence (Silicon Revision 2.0)
Hold POR Asserted
Release POR
Release POR
1, 3, 5
4
4
MCIMX31/MCIMX31L Technical Data, Rev. 4.1
FVCC, MVCC, SVCC, UVCC
1
1
1
1, 2
1, 2,3
1,3
Notes:
1
2
3
4
Notes:
1
2
3
4
5
The board design must guarantee that supplies reach
90% level before transition to the next state, using Power
Management IC or other means.
The NVCC1 supply must not precede IOQVDD by more
than 0.2 V until IOQVDD has reached 1.5 V. If IOQVDD
is powered up first, there are no restrictions.
Raising NVCC2, NVCC21, and NVCC22 at the same
time as IOQVDD does not produce the slight increase in
current drain on IOQVDD (as described in
Note 5).
Unlike the power-up sequence for Silicon Revision 1.2,
FUSE_VDD should not be driven on power-up for Silicon
Revision 2.0. This supply is dedicated for fuse burning
(programming), and should not be driven upon boot-up.
The board design must guarantee that supplies reach
90% level before transition to the next state, using Power
Management IC or other means.
The NVCC1 supply must not precede IOQVDD by more
than 0.2 V until IOQVDD has reached 1.5 V. If IOQVDD
is powered up first, there are no restrictions.
The parallel paths in the flow indicate that supply group
NVCC2, NVCC21, and NVCC22, and supply group
FVCC, MVCC, SVCC, and UVCC ramp-ups are
independent. Note that this power-up sequence is
backward compatible to Silicon Revs. 1.15 and 1.2,
because NVCC2x ramp-up proceeding PLL supplies is
allowed.
Unlike the power-up sequence for Silicon Revision 1.2,
FUSE_VDD should not be driven on power-up for Silicon
Revision 2.0. This supply is dedicated for fuse burning
(programming), and should not be driven upon boot-up.
Raising IOQVDD before NVCC21 produces a slight
increase in current drain on IOQVDD of approximately
3–5 mA. The current increase will not damage the IC.
Refer to Errata ID TLSbo91750 for details.
Electrical Characteristics
Figure
3,
21