TMC2074-NU SMSC, TMC2074-NU Datasheet - Page 93

• Manufacturer Part Number: TMC2074-NU
• Description: IC CTRL CIRC 128VTQFP PERIPH MOD
• Manufacturer: SMSC
• Series: CircLink™r

Specifications of TMC2074-NU

• Controller Type: I/O Controller
• Interface: Transceiver
• Voltage - Supply: 3 V ~ 3.6 V
• Current - Supply: 40mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 128-TQFP, 128-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 638-1024

Dual Mode CircLink™ Controller
Datasheet
3.2.17 MODE Register: Operation Mode Setup Register
SMSC TMC2074
CMIERRMD (bit12)
This bit sets the operation mode in the event of error correction during data packet receive in the CMI
decoding circuit. When error correction (CMIECC = 1) is performed during a receive, if the receive is
terminated this bit is set to 1. The receive termination process should follow 2.9.1 “Temporary receive and
direct receive.”
1: Terminates packet receive , 0: Does not terminate packet receive
NSTSEND (bit11)
This bit has a function that allows the nodes to alternate clock master to add the NST value to the last two
bytes of packet similar to the function in clock master node. When this bit is set to 1, NST is sent instead of
the last two bytes that are written in packet RAM.
1: Adds NST , 0: Dose not add NST
NSTSTOP (bit10)
This bit stops NST at the current count value.
1: Stops NST count , 0: Dose not stop NST count
INIMODE (bit 9)
This bit selects whether the CircLink initialization, which includes the MAXID number setup, page size
setup, the node number setup, and communication rate prescaler setup, are set via an external input pin or
by register specification. Since this bit is important in network settings, this bit must be rewritten in the
condition of TXEN = 0 (offline). When this bit is rewritten, software reset is automatically executed. (The
software reset is released automatically.)
1: Sets via register, 0: Sets via external input pin
15-13
12
11
10
bit
9
8
7
6
5
4
3
2
1
0
Name
--------
CMIERRMD
NSTSEND
NSTSTOP
INIMODE
TXEN
ECRI
BRE
TXM
RTO
WDMD
nTKNRTY
nACKNAK
nACLR
DATASHEET
init. value
0 or 1
--
0
0
0
0
0
0
0
0
0
0
0
0
Page 93
description
reserved (all "0") -> Must write 000
CMI RX Error Mode
Network Standard Time SEND
Network Standard Timer STOP
Initialize Mode
Tx Enable
CircLink Receive Inhibit
Broadcast Receive Enable
Transmitter Mode
Remote buffer Tx Once mode
Packet Data Word Mode
TOKEN Retry
ACKNACK Mode
Receive Flag Auto Clear
(Read/Write)
address:22h
Revision 0.2 (10-23-08)