TMC2084-HD SMSC, TMC2084-HD Datasheet - Page 37
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TMC2084-HD
Manufacturer Part Number
TMC2084-HD
Description
Network Controller & Processor ICs DUAL MODE CircLink Cntlr
Manufacturer
SMSC
Datasheet
1.TMC2084-HT.pdf
(74 pages)
Specifications of TMC2084-HD
Product
Controller Area Network (CAN)
Number Of Transceivers
1
Data Rate
5 Mbps
Supply Voltage (max)
3.6 V
Supply Voltage (min)
3 V
Supply Current (max)
25 mA
Maximum Operating Temperature
+ 70 C
Minimum Operating Temperature
0 C
Mounting Style
SMD/SMT
Package / Case
TQFP-48
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Standalone Mode CircLink
Datasheet
2.6
SMSC TMC2084
(nPOSTR)
PA7 - 0
PD7 - 0
PB7 - 0
PC7 - 0
INPUT PORT
In the following events, Data from the INPUT PORTs are broadcasted using the INPUT DATA packet:
Also, the following data are transmitted together with the data from INPUT PORTs:
The data from the OUTPUT PORTs are retransmitted (feed backed) to the bits that are configured as
OUTPUT PORTs. However, if bits PD7 – 4 are configured as FLAG OUTPUT, ”1” is transmitted to each
corresponding bit. Additionally, if the transmit trigger is configured as the external trigger, ”0” is transmitted
to the corresponding trigger input pin: PC0 or PD0.
No INPUT DATA packet is transmitted before the START TRANSMIT command is received from the host
(i.e., the transmission function is activated). Once the START TRANSMIT command is received, the
transmission of the INPUT DATA packet commences depending on the transmit trigger mode configured
through network using bits TXTRG3 - 0. For detailed information, see sections
Through Network and
Own token is received immediately after the START TRANSMIT command is received.
Own token is received after the transmit trigger is issued.
Own token is received immediately after the OUTPUT PORT command is received.
Various statuses
PGS2 – 0 ― Configuration data of I/O direction (see the section of Configuration Using Shared
Pins)
NST15 – 0 ― Time stamp (see the section of NST)
TM
Controller
2.4
Command Packets.
POSTRDLY = 0 : Tx ×11~14
POSTRDLY = 1 : Tx×43~46
Tx
DATASHEET
Tx
Tdr: Period of transmission rate (400 ns @ 2.5 Mbps)
Tx: Period of input clock (50 ns @ 20 MHz) Tdr = 8 × Tx
Page 37
Tx
•
•
•
MYRECON asserted (EMGYMD=1)
Tx X 14 / Tx X 46 (700 ns / 2.3 μs @ 2.5 Mbps)
INITIALIZE OUTPUT PORT command received
Tx X 11 / Tx X 43 (550 ns / 2.15 μs @ 2.5 Mbps
OUTPUT DATA packet received
* First receiving
Tx X 11 / Tx X 43 (550 ns / 2.15 μs @ 2.5 Mbps
* Subsequent receiving
Tx X 12 / Tx X 44 (600ns / 2.2 μs @ 2.5 Mbps)
Tdr
2.2.2
Revision 0.2 (10-23-08)
Configuration