Texas Instruments MSP430F6735A, Руководство пользователя

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Workaround Do not single step through or place break points in the port mapping configuration section
of code.
PORT19
PORT Module
Category
Functional
Function Port interrupt may be missed on entry to LPMx.5
Description If a port interrupt occurs within a small timing window (~1MCLK cycle) of the device entry
into LPM3.5 or LPM4.5, it is possible that the interrupt is lost. Hence this interrupt will not
trigger a wakeup from LPMx.5.
Workaround None
SD3
SD Module
Category
Functional
Function Incorrect conversion result in twos complement mode when -VFS is applied
Description When the SD converter is configured in twos complement mode with left or right
alignment and any OSR setting, applying the -VFS voltage at the input will result in an
erroneous output.
Workaround None.
UCS11
UCS Module
Category
Functional
Function Modifying UCSCTL4 clock control register triggers an additional erroneous clock request
Description Changing the SELM/SELS/SELA bits in the UCSCTL4 register will correctly configure the
respective clock to use the intended clock source but might also erroneously set XT1/XT2
fault flag if the crystals are not present at XT1/XT2 or not configured in the application
firmware. If the NMI interrupt for the OFIFG is enabled, an unintentional NMI interrupt will
be triggered and needs to be handled.
Note
The XT1/XT2 fault flag can be set regardless of which SELM/SELS/SELA bit
combinations are being changed.
Workaround Clear all the fault flags in UCSCTL7 register once after changing any of the SELM/SELS/
SELA bits in the UCSCTL4 register.
If OFIFG-NMI is enabled during clock switching, disable OFIFG-NMI interrupt during
changing the SELM/SELS/SELA bits in the UCSCTL4 register to prevent unintended NMI.
Alternatively it can be handled accordingly (clear falsely set fault flags) in the Interrupt
Service Routine to ensure proper OFIFG clearing.
USCI36
USCI Module
Category Functional
Function UCLKI not usable in I2C master mode
www.ti.com Advisory Descriptions
SLAZ647S – FEBRUARY 2015 – REVISED MAY 2021
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