ST10F276E
CAN modules
Multiple CAN bus
The ST10F276E provides two CAN interfaces to support such kind of bus configuration as
shown in Figure 22.
Figure 22. Connection to two different CAN buses (e.g. for gateway application)
8-)3#ꢌ#!.0!2 ꢓ ꢉ
#!.ꢀ
28
#!.ꢁ
48
28
48
0ꢇꢌꢃ
0ꢇꢌꢄ 0ꢇꢌꢇ
0ꢇꢌꢊ
#!.
TRANSCEIVER
#!.
TRANSCEIVER
#!.?(
#!.?,
#!.?(
#!.?,
#!. BUS ꢀ
#!. BUS ꢁ
'!0'2)ꢉꢉꢉꢋꢋ
Parallel Mode
In addition to previous configurations, a parallel mode is supported. This is shown in
Figure 23.
Figure 23. Connection to one CAN bus with internal Parallel Mode enabled
8-)3#ꢌ#!.0!2 ꢓ ꢀ
ꢍ"OTH #!. ENABLEDꢏ
#!.ꢀ
#!.ꢁ
28
48
28
48
0ꢇꢌꢃ
0ꢇꢌꢄ
0ꢇꢌꢇꢍꢀꢏ
0ꢇꢌꢊꢍꢀꢏ
#!.
TRANSCEIVER
#!.?(
#!.?,
#!. BUS
'!0'2)ꢉꢉꢀꢉꢉ
1. P4.4 and P4.7 when not used as CAN functions can be used as general purpose I/O while they cannot be
used as external bus address lines.
Doc ID 12303 Rev 3
103/235
STMICROELECTRONICS [ ST ]
