TMC2074-NE SMSC, TMC2074-NE Datasheet - Page 30

• 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

NOTE:
Revision 0.2 (10-23-08)
(2-b) Data bus = 8 bits , Word mode=ON
(W16 pin=L, WDMD=1 in MODE REG.)
In word mode = ON, to preserve the upper and lower bytes of word data, COMR4 must be accessed in
order of 08h first and 09h second. This restriction applies to both read and write. Also, it is impossible to
independently access the Continuation Pointer (CP address = 02h) in RAM independently To access the
CP, a dummy cycle is necessary. Refer to section 2.5.3 - Packet Data Structure for detail.
COMR2 Register : RDDATA AUTOINC nWRAPAR PAGE[4:0]
COMR3 Register : Address within a page RAMADR[7:0]
COMR4 Register : Packet Data RAMDT[15:0]
A/AD[5:0] = 04h (05h) *
A/AD[5:0] = 06h (07h) *
A/AD[5:0] = 08h (09h) *
A/AD[5:0] = 09h (08h) *
( )*:nSWAP=L
DATASHEET
15 14 13 12 11 10 9
RD.
7
Page 30
A.I.
6
Bit0 is fixed in 0 in the inside.
nW.A
5
4
4
3
3
2
2
1
1
X
0
8
Dual Mode CircLink™ Controller
7
6
5 4 3 2 1 0
SMSC TMC2074
Datasheet