TMC2074-NE SMSC, TMC2074-NE Datasheet - Page 51

• 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

Dual Mode CircLink™ Controller
Datasheet
SMSC TMC2074
Figure 13 - Strobe Output Timing in Standalone Mode, External Trigger Mode (Mode 3)
When the transmission trigger mode is set to External Trigger (Mode 3, SPRE2-0=111), the output port’s
least significant pin is converted to the function of Strobe output (nPOSTR). When the requirements of (1)
and (2) (listed above) are met, as well as normal reception without CRC errors, Word data is latched to the
output latch. When the output status is updated, a strobe signal is transmitted by the nPOSTR pin. As with
reception of data, only the higher order 15-bits are effective. The PO15-1 output port’s initial high-
impedance setting immediately after Hardware Reset is maintained at high-impedance until the packet is
received as normal. Strobe output nPOSTR has regular output status, and the initial setting after Hardware
Reset is ‘high’.
P00(nPOSTR)
P0 [15:1]
Tdr: Transmission Rate Cycle (400 ns when 2.5 Mbps )
Tx: Input Clock Cycle (50 ns when 20 MHz)
DATASHEET
1.5*Tdr-Tx
Updated Data
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Page 51
Tdr
デ タ
Revision 0.2 (10-23-08)