TMC2074-NE SMSC, TMC2074-NE Datasheet - Page 95

• 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
3.2.18 CARRY Register: Carry Selection for External Output
NOTE:
SMSC TMC2074
nTKNRTY (bit 2)
Setting this bit to 1 disables token re-send. (original operation of ARCNET)
nACKNAK (bit 1)
Setting this bit to 1 generates reconfiguration in ACK/NAK deformation. (original operation of ARCNET)
nACLR (bit 0)
Setting this bit to 1 disables automatic clearance of receive flag in the readout of the last data in the free
format receive mode.
OFSMOD (CARRY register: bit 15)
0: Automatic offset (default)
1: Manual offset
Do not set OFSMOD bit = 1, when NSTPRE2 pin = Low
NSTOFS4-0 (CARRY register: bits 12 to 8)
These bit selects an offset from 0 to 31. The offset is “NST resolution * NSTOFS4-0”.
NSTC3-0 (bits 7 to 4)
These bits specify the generation timing of external pulse output, nNSTCOUT, by means of the digit
position of NST.
Refer to section 2.12 for the NST resolution.
CARRY
14,13
12-8
7-4
3-0
15
bit
NSTC3-0
0000
0001
0010
1111
:
name
OFSMOD
--------
NSTOFS4-0
NSTC3-0
WARTC3-0
CARRY Digit
NST[15]
NST[0]
NST[1]
NST[2]
DATASHEET
:
init. value
all "0"
8h
8h
--
0
Page 95
description
OFFSET Mode
reserved (all "0")
NST OFFSET
NST Carry Select
WART Carry Select
NST Resolution* 2^16
NST Resolution * 2^1
NST Resolution * 2^2
NST Resolution * 2^3
Check Output Cycle
:
(Read/Write)
address:24h
Revision 0.2 (10-23-08)