Freescale Semiconductor TWR-KV58F220M User manual

Freescale Semiconductor, Inc.
TWR-KV58F220M Errata
Rev. 1.0

TWR-KV58F220M Errata Page 2 of 4
Contents
1 Oscillator not functional when operating at 1.8V ........................................................................ 3
2 Incorrect MCU part number ................................................................................................................. 3

TWR-KV58F220M Errata Page 3 of 4
1Oscillator not functional when operating at 1.8V
Affects Re A boar s.
Issue: The oscillator use to rive the EXTAL pin on the target MCU (MKV58F1M0VLQ22) oes not
operate at 1.8V. There are two reasons for this issue:
1. The chosen oscillator is not rate for voltages below 2.7V
2. The oscillator is not source from the V_BRD power rail but rather it is source from the P3V3
power rail.
Impact: The impact of this issue is that the target MCU (MKV58F1M0VLQ22) cannot exercise PEE, FBE,
or BLPE mo es in the 1.8V boar configuration using the on-boar oscillator.
Workaround: There is currently only one workaroun for this issue.
1. Remove resistor R109 an either a) install a 68 ohm resistor onto the R110 pa s or b) install
lea wires to the pa of either resistor R109 pa s or R110 pa s an use an external source to
rive the esire clock onto the EXTAL pin at a 1.8V level.
2Incorrect MCU part number
Affects Re A boar s.
Issue: On some TWR-KV58F220M boar s, the target KV5x evice may be incorrectly marke
“PKV58F1M0VLQ22” whereas it shoul be “PKV58F1M0VLQ24”.
Impact: Incorrectly marke evices may not operate up to 240 MHz un er all operating con itions.
Workaround: There is no workaroun for this errata.

TWR-KV58F220M Errata Page 4 of 4
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