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STPM32 Datasheet(PDF) 53 Page - STMicroelectronics

Part # STPM32
Description  ASSP for metering applications with up to four independent 24-bit 2nd order sigma-delta ADCs, 4 MHz OSF and 2 embedded PGLNA
PDF  89 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STPM32 Datasheet(HTML) 53 Page - STMicroelectronics

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Register
Bit position
Description
Default value
Access mode
IRQ CR
2
mask for UART timeout error
0
RW
1
mask for UART CRC error
0
RW
•
SPI RX overrun: occurs when two consecutive write transactions are too fast and close to each other
•
SPI TX underrun: occurs when a read-back operation (= write then read the same register) or latch/read is
too fast
•
SPI CRC error: CRC error detected
•
UART/SPI write address error: write address out of range (not write address not writable)
•
UART/SPI read address error: read address out of range (not read address not readable)
•
SPI TX empty: transmission buffer empty (for SPI diagnostic, not recommended for normal IRQ operations)
•
SPI RX full: reception buffer full (for SPI diagnostic, not recommended for normal IRQ operations)
•
UART TX overrun: occurs when master and slave have different baud rates and master transmits before
reception has ended
•
UART RX overrun: active when received data have not been correctly processed
•
UART noise error: noisy bit detected
•
UART frame error: missing stop bit detected
•
UART timeout error: timeout counter expired
•
UART CRC error: CRC error detected
•
UART break: break frame (all zeros) received.
Read-write status bits are set by the occurrence of the related event and are not reset when the event ceases, on
contrary master can only reset them transmitting a write sequence addressed to memory location 0x28.
STPM32, STPM33, STPM34
Communication protocol
DS10272 - Rev 13
page 53/89



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