TMC2074-NU SMSC, TMC2074-NU Datasheet - Page 3

• 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
Table of Contents
Chapter 1
1.1
1.2
1.3
1.4
1.5
1.5.1
1.5.2
1.5.3
1.5.4
1.5.5
1.5.6
1.6
1.6.1
1.6.2
1.6.3
1.6.4
1.6.5
1.6.6
1.6.7
1.6.8
1.6.9
1.6.10
1.6.11
1.6.12
1.6.13
1.6.14
1.6.15
1.6.16
1.6.17
1.6.18
1.6.19
1.6.20
1.6.21
1.6.22
Chapter 2
2.1
2.2
2.3
2.4
2.4.1
2.4.2
2.4.3
2.5
2.5.1
2.5.2
2.5.3
2.6
2.6.1
SMSC TMC2074
About CircLink...................................................................................................................................................6
About TMC2074 .................................................................................................................................................7
Internal Block Diagram .....................................................................................................................................8
Pin Configuration ..............................................................................................................................................9
Pin Description by Functions.........................................................................................................................13
Setup Pins........................................................................................................................................................16
Communication Specification ........................................................................................................................25
Message Class.................................................................................................................................................25
CircLink Network Communication Protocol Overview ................................................................................26
CircLink Protocol Enhancement ....................................................................................................................27
RAM Page Expansion......................................................................................................................................28
CPU Interface...................................................................................................................................................33
CPU Interface Pins (27) .................................................................................................................................13
Transceiver Interface Pins (5)........................................................................................................................13
Setup Pins (37) ..............................................................................................................................................14
External Output or I/O Pins (10).....................................................................................................................14
Test Pins (5) ..................................................................................................................................................15
Clock Pins (3) ................................................................................................................................................15
CPU Type Selection.......................................................................................................................................16
Address Multiplex Selection ...........................................................................................................................17
Write Timing Selection ...................................................................................................................................18
Read Timing Selection...................................................................................................................................19
Data Bus Width Selection ..............................................................................................................................20
Data Bus Byte Swap ......................................................................................................................................20
Data Strobe Polarity Specification..................................................................................................................20
Page Size Selection.......................................................................................................................................21
Maximum Node (MAXID) Number Setup .......................................................................................................21
Reducing Token Loss ....................................................................................................................................27
Reduction of Network Reconfiguration Time..................................................................................................27
Reduction of Reconfiguration Burst Signal Send Time ..................................................................................28
RAM Access ..................................................................................................................................................29
Packet Buffer Structure..................................................................................................................................31
Packet Data Structure....................................................................................................................................32
CPU Identification and Compatibility between Intel and Motorola Processors ...............................................33
Node ID Setup............................................................................................................................................21
NST Resolution Setup................................................................................................................................22
Standalone Mode Specification ..................................................................................................................22
Warning Timer Resolution/Standalone Sending Schedule Setup...............................................................22
Diagnosis Mode..........................................................................................................................................22
Prescaler Setup for Communication Speed................................................................................................22
NST Carry Output Digit Select....................................................................................................................23
CMI Bypass Specification...........................................................................................................................23
HUB Function ON/OFF ..............................................................................................................................23
Optical Transceiver Mode ..........................................................................................................................23
TXEN Polarity Select..................................................................................................................................24
Extension Timer Setting 1 ..........................................................................................................................24
Test Pins ....................................................................................................................................................24
General Description................................................................................................................................6
Functional Description.........................................................................................................................25
DATASHEET
Page 3
Revision 0.2 (10-23-08)