Product overview
STM8S207xx, STM8S208xx
4.14.4
I
2
C
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I
2
C master features:
–
–
Clock generation
Start and stop generation
Programmable I
2
C address detection
Stop bit detection
●
I
2
C slave features:
–
–
●
●
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)
4.14.5
beCAN
The beCAN controller (basic enhanced CAN), interfaces the CAN network and supports the
CAN protocol version 2.0A and B. It has been designed to manage a high number of
incoming messages efficiently with a minimum CPU load.
For safety-critical applications the beCAN controller provides all hardware functions to
support the CAN time triggered communication option (TTCAN).
The maximum transmission speed is 1 Mbit.
Transmission
●
●
●
Three transmit mailboxes
Configurable transmit priority by identifier or order request
Time stamp on SOF transmission
Reception
●
●
●
●
●
●
●
●
8-, 11- and 29-bit ID
One receive FIFO (3 messages deep)
Software-efficient mailbox mapping at a unique address space
FMI (filter match index) stored with message
Configurable FIFO overrun
Time stamp on SOF reception
Six filter banks, 2 x 32 bytes (scalable to 4 x 16-bit) each, enabling various masking
configurations, such as 12 filters for 29-bit ID or 48 filters for 11-bit ID
Filtering modes:
–
–
Mask mode permitting ID range filtering
ID list mode
Disable automatic retransmission mode
16-bit free running timer
Configurable timer resolution
Time stamp sent in last two data bytes
●
Time triggered communication option
–
–
–
–
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Doc ID 14733 Rev 9
STMICROELECTRONICS [ STMICROELECTRONICS ]
