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TMC2074

Dual Mode CircLink™ Controller

SMSC -> Microchip 

Dual Mode CircLink™ Controller

Datasheet

1.5 Pin Description by Functions

* A pin name starting with “n” indicates an active-low pin.

1.5.1 CPU Interface Pins (27)

D[15:6]/PI[15:6]

Data Bus / Standalone Input Port (bit15-6)

D[5:1]/AD[5:1]/PI[5:1]

Data Bus / Address Data Bus / Standalone Input Port (bit5-1)

D[0]//AD[0]//PI[0]/nPISTR

Data Bus / Address Data Bus / Standalone Input Port (bit5-0)

/Standalone strobe Input Port

nCS/SCM[4]

Chip Select Input / Standalone Designate CMID (bit4)

nWR/DIR/PO[7]

Write Signal Input / Access Direction / Standalone Input Port (bit7)

nRD/nDS/PO[6]

Read Signal Input / Data strobe / Standalone Input Port (bit6)

A[5:4]/PO[5:4]

Address Input / Standalone Input Port (bit5-4)

A[3]/ALEPOL/PO[3]

Address Input / ALE Designate Polarity / Standalone Output Port (bit3)

A[2]/ALE/PO[2]

Address Input / ALE / Standalone Output Port (bit2)

A[1]/PO[1]

Address Input / Standalone Output Port (bit1)

A[0]/PO[0]]/nPOSTR

Address Input / Standalone Output Port (bit0) / Standalone strobe Input

Port

nINTR/NSTUNLOC

Interrupt Output / NSTUNLOC Flag Output for Standalone

nRESET

Reset Input (Active Low)

1.5.2 Transceiver Interface Pins (5)

RXIN

Port1 Receive Data Input

TXEN

Port1 Transmit Enable Output

TXD

Transmit Data Output (Port1 & 2 Common)

RXIN2

Port2 Receive Data Input

TXEN2

Port2 Transmit Enable Output

SMSC TMC2074

Page 13

DATASHEET

Revision 0.1 (03-29-06)

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