Network Router User Manual

Mailbox RAM
(512 Bytes)
32-Message Mailbox
of 4 × 32-Bit Words
Memory Management
Unit
CPU Interface,
Receive Control Unit,
Timer Management Unit
eCAN Memory
(512 Bytes)
Registers and Message
Objects Control
32 32
Message Controller
32 3232 3232 32
eCAN Protocol Kernel
Receive Buffer
Transmit Buffer
Control Buffer
Status Buffer
Enhanced CAN Controller
32
Controls
Address Data
eCAN1INTeCAN0INT
32
SN65HVD23x
3.3-V CAN Transceiver
CAN Bus
SM320F2812-HT
SGUS062A–JUNE 2009 –REVISED APRIL 2010 www.ti.com
Figure 4-7. eCAN Block Diagram and Interface Circuit
Table 4-5. 3.3-V eCAN Transceivers for the SM320F2812 DSP
SUPPLY LOW-POWER SLOPE
PART NUMBER VREF OTHER T
A
VOLTAGE MODE CONTROL
SN65HVD230 3.3 V Standby Adjustable Yes – –40°C to 85°C
SN65HVD230Q 3.3 V Standby Adjustable Yes – –40°C to 125°C
SN65HVD231 3.3 V Sleep Adjustable Yes – –40°C to 85°C
SN65HVD231Q 3.3 V Sleep Adjustable Yes – –40°C to 125°C
SN65HVD232 3.3 V None None None – –40°C to 85°C
SN65HVD232Q 3.3 V None None None – –40°C to 125°C
SN65HVD233 3.3 V Standby Adjustable None Diagnostic Loopback –40°C to 125°C
SN65HVD234 3.3 V Standby & Sleep Adjustable None – –40°C to 125°C
SN65HVD235 3.3 V Standby Adjustable None Autobaud Loopback –40°C to 125°C
66 Peripherals Copyright © 2009–2010, Texas Instruments Incorporated
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