TMC20073
CircLinkTM
Communications
Controller LSI
PRODUCT FEATURES
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Datasheet
3.3V (3.0 to 3.6V) Power Supply Voltage (Vdd)
128 Pin TQFP package, green, lead-free
(14x14, 0.4 pitch)
Supports 8/16-Bit Data Bus (Selectable)
Full 1K On-Chip Dual-Port Buffer RAM
Supports Sequential I/O Mapped Access to Internal
RAM Buffer
Supports up to 31 Nodes
Low Power CMOS, 3.3V Operation with 5V Tolerance
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Cabling Options
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High Speed: Up to 5 Mbps
Include 3 Port HUB
Can operate with or without CPU
— Fiber Optics, RS485 Twisted Pair
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— With CPU: Support interface to multiple CPU’s
– Intel (80XX) and Motorola (68XXX)
— Without CPU: Support general purpose I/O ports
– 16 bit input and 16 bit output
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Support multi-topology
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Temperature Range from -20° to 85°
— Bus, Star and Mixed type
Internal Block Diagram of LSI
nMUX
Micro-Controller bus
nRWM W16 nSWAP
Others
Clock
nNSTCOUT
FLASHO
Memory Access Mediation Circuit
Register Access
Control Circuit
Mode Setting
Address
Multiplexer
Address pointer
Interrupt Status
Interrupt Mask
Page Register
EC Command
Diag. Register
Receive Flag(#01-#31)
Buffer Memory
Address Register
Receive Mode(#01-#31)
Address Pointer
Data Register H
Clock Master SID
512B
Improved ARCNET Protocol
Micro Sequencer
512B
Working Registers
Data Register L
Net. Standard Time
Data Latch
Data Latch
Shift Register
Alarm Setting
Receive SID
TENT-ID Register
Search SID
CONFIG Register
MAX ID Setting (MAXID)
SETUP Registers
RECON Timer
Node ID Setting (NID)
TX Signal
Generator
RX Synchronous circuit
3Port HUB Circuit
Page Size Setting (PS)
Data Rate Setting
CMI Encode
PIN-INFO
Reset Circuit
ERR-INFO
MAXID
SMSC TMC20073
NID
CMI Decode
OSC
CMI Synchro
PS
CKP
nSTALONE
nDIAG
nHUBON
nCMIBYP
DATASHEET
TXEN2 TXEN TXD RXIN2 RXIN
Revision 1.5 (04-01-05)