TMC2074-NE SMSC, TMC2074-NE Datasheet - Page 34

• Manufacturer Part Number: TMC2074-NE
• Description: Network Controller & Processor ICs Standalone Mode CircLink Cntlr
• Manufacturer: SMSC

Specifications of TMC2074-NE

• Product: Controller Area Network (CAN)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

2.6.2
Revision 0.2 (10-23-08)
Interface Restrictions
Data Strobe signal using Motorola 16-bit CPU
When executing word (16 bit) access to odd addresses by DIR and data strobe signals, the Motorola CPU
does not discriminate between upper and lower data strobe signals. Because of this, it is necessary to OR
the upper and lower data strobe signals to provide the data strobe input.
Data Transmission
When transmitting and receiving data of 8 bits and 16 bits, the transmitter node can send odd-numbered
bytes but the receiving node can only implement word access (which is 16-bit), the word is read with one
invalid upper data byte. To use the receive data function in a system, special care must be taken. This
problem occurs only when the CP field value in the packet is an odd number.
DATASHEET
Page 34
Dual Mode CircLink™ Controller
SMSC TMC2074
Datasheet