TMC2074-NE SMSC, TMC2074-NE Datasheet - Page 92
TMC2074-NE
Manufacturer Part Number
TMC2074-NE
Description
Network Controller & Processor ICs Standalone Mode CircLink Cntlr
Manufacturer
SMSC
Datasheet
1.TMC2074-NU.pdf
(116 pages)
Specifications of TMC2074-NE
Product
Controller Area Network (CAN)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
- Current page: 92 of 116
- Download datasheet (701Kb)
Supplement:
3.2.16 CMID Register: Clock Master Node ID
Revision 0.2 (10-23-08)
In Free Format receive mode receive flags RXF31 to RXF1 become 1 after receive completion and must
be cleared (0) after being read. The clearance is executed by writing “1” in object bits to clear only the
receive flag bits.
For example, if the readout data of the RXFH register (higher receive flag) is 01h; in this case, the data
means receive completion of page #16. If this readout data (01h) is written back to the RXFH register, only
the RXF 16 bit is cleared. Therefore, the bit in the RXFH register that is set after the RXFH register readout
is not cleared by mistake. The important point is that the bits subject to be cleared are the bits of which the
CPU recognizes as “1.”
This description is also applicable to clearing flags in the Interrupt Status register.
CMID 4-0 (bits 4 to 0)
These bits specify IDs of the clock master node and the standard node of the network standard time
(NST). If a packet is received from the node set, the NST is loaded. If 0 is set, loading is not executed.
CMID
Clearing the Receive Flag by writing 1
15-5
4-0
bit
name
--------
CMID4-0
DATASHEET
init. value
all "0"
--
Page 92
description
reserved (all "0")
Clock Master Node ID
Dual Mode CircLink™ Controller
(Read/Write)
address:20h
SMSC TMC2074
Datasheet
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