Datasheet

DocID030584 Rev 2 19/84
STM8S001J3 Functional overview
23
Asynchronous communication (UART mode)
• Full duplex communication - NRZ standard format (mark/space)
• Programmable transmit and receive baud rates up to 1 Mbit/s (f
CPU
/16) and capable of
following any standard baud rate regardless of the input frequency
• Separate enable bits for transmitter and receiver
• Two receiver wakeup modes:
– Address bit (MSB)
– Idle line (interrupt)
• Transmission error detection with interrupt generation
• Parity control
LIN master mode
• Emission: generates 13-bit synch. break frame
• Reception: detects 11-bit break frame
4.13.2 SPI
• Maximum speed: 8 Mbit/s (f
MASTER
/2) both for master and slave
• Unidirectional transfer: SPI master mode transmit/receive only, SPI slave mode receive
only
• Simplex master synchronous transfers on two lines with a possible bidirectional data
line
• Master or slave operation - selectable by software
• CRC calculation
• 1 byte Tx and Rx buffer
4.13.3 I2C
• I2C master features
– Clock generation
– Start and stop generation
• I2C slave features
– Programmable I2C address detection
– Stop bit detection
• Generation and detection of 7-bit/10-bit addressing and general call
• Supports different communication speeds
– Standard speed (up to 100 kHz)
– Fast speed (up to 400 kHz)
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