DocID023833 Rev 5 9/36
STM32F42xx and STM32F43xx STM32F42xx and STM32F43xx silicon limitations
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Section 2.5: USART
peripheral limitations
Section 2.5.1: Idle frame is not detected if receiver clock
speed is deviated
NN
Section 2.5.2: In full duplex mode, the Parity Error (PE) flag
can be cleared by writing to the data register
AA
Section 2.5.3: Parity Error (PE) flag is not set when
receiving in Mute mode using address mark detection
NN
Section 2.5.4: Break frame is transmitted regardless of
nCTS input line status
NN
Section 2.5.5: nRTS signal abnormally driven low after a
protocol violation
AA
Section 2.6: OTG_FS
peripheral limitations
Section 2.6.1: Data in RxFIFO is overwritten when all
channels are disabled simultaneously
AA
Section 2.6.2: OTG host blocks the receive channel when
receiving IN packets and no TxFIFO is configured
AA
Section 2.6.3: Host channel-halted interrupt not generated
when the channel is disabled
AA
Section 2.6.4: Error in software-read OTG_FS_DCFG
register values
AA
Section 2.7: Ethernet
peripheral limitations
Section 2.7.1: Incorrect layer 3 (L3) checksum is inserted
in transmitted IPv6 packets without TCP, UDP or ICMP
payloads
AA
Section 2.7.2: The Ethernet MAC processes invalid
extension headers in the received IPv6 frames
NN
Section 2.7.3: MAC stuck in the Idle state on receiving the
TxFIFO flush command exactly 1 clock cycle after a
transmission completes
AA
Section 2.7.4: Transmit frame data corruption AA
Section 2.7.5: Successive write operations to the same
register might not be fully taken into account
AA
Section 2.8: FMC peripheral
limitation
Section 2.8.1: Dummy read cycles inserted when reading
synchronous memories
NN
Section 2.8.2: FMC synchronous mode and NWAIT signal
disabled
AA
Section 2.8.3: Read access to a non-initialized
FMC_SDRAM bank
PP
Section 2.8.4: Corruption of data read from the FMC A
-
Section 2.8.5: Interruption of CPU read burst access to an
end of SDRAM row
AA
Section 2.8.6: FMC NOR/PSRAM controller: asynchronous
read access on bank 2 to 4 returns wrong data when bank
1 is in synchronous mode (BURSTEN bit is set)
AA
Section 2.8.7: FMC dynamic and static banks switching AA
Table 4. Summary of silicon limitations (continued)
Links to silicon limitations Revision A Revision Y
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