TMS320F28335, TMS320F28334, TMS320F28332
TMS320F28235, TMS320F28234, TMS320F28232
SPRS439I–JUNE 2007–REVISED MARCH 2011
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eCAN0INT
eCAN1INT
Controls Address
Data
32
Enhanced CAN Controller
Message Controller
Mailbox RAM
(512 Bytes)
Memory Management
Unit
eCAN Memory
(512 Bytes)
Registers and
CPU Interface,
Receive Control Unit,
Timer Management Unit
32-Message Mailbox
of 4 x 32-Bit Words
Message Objects Control
32
32
32
eCAN Protocol Kernel
Receive Buffer
Transmit Buffer
Control Buffer
Status Buffer
SN65HVD23x
3.3-V CAN Transceiver
CAN Bus
Figure 4-12. eCAN Block Diagram and Interface Circuit
Table 4-8. 3.3-V eCAN Transceivers
SUPPLY
VOLTAGE
LOW-POWER
MODE
SLOPE
CONTROL
PART NUMBER
VREF
OTHER
TA
SN65HVD230
SN65HVD230Q
SN65HVD231
SN65HVD231Q
SN65HVD232
SN65HVD232Q
SN65HVD233
3.3 V
3.3 V
3.3 V
3.3 V
3.3 V
3.3 V
3.3 V
Standby
Standby
Sleep
Adjustable
Adjustable
Adjustable
Adjustable
None
Yes
Yes
–
–
–
–
–
–
–40°C to 85°C
–40°C to 125°C
–40°C to 85°C
–40°C to 125°C
–40°C to 85°C
–40°C to 125°C
–40°C to 125°C
Yes
Sleep
Yes
None
None
None
None
None
None
Standby
Adjustable
Diagnostic
Loopback
SN65HVD234
SN65HVD235
3.3 V
3.3 V
Standby and Sleep
Standby
Adjustable
Adjustable
None
None
–
–40°C to 125°C
–40°C to 125°C
Autobaud
Loopback
88
Peripherals
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