Texas-instruments Digital Signal Processor SM320F2812-HT Manual do Utilizador descarregar pdf (Página 64)

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

Controls

Address Data

eCAN1INTeCAN0INT

SN65HVD23x

3.3-V CAN Transceiver

CAN Bus

SM320F2812-HT

SGUS062B–JUNE 2009 – REVISED JUNE 2011

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

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

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