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]
D[5:1]/AD[5:1]/PI[5:1]
D[0]//AD[0]//PI[0]/nPISTR
Data Bus / Standalone Input Port (bit15-6)
Data Bus / Address Data Bus / Standalone Input Port (bit5-1)
Data Bus / Address Data Bus / Standalone Input Port (bit5-0)
/Standalone strobe Input Port
Chip Select Input / Standalone Designate CMID (bit4)
Write Signal Input / Access Direction / Standalone Input Port (bit7)
Read Signal Input / Data strobe / Standalone Input Port (bit6)
Address Input / Standalone Input Port (bit5-4)
Address Input / ALE Designate Polarity / Standalone Output Port (bit3)
Address Input / ALE / Standalone Output Port (bit2)
Address Input / Standalone Output Port (bit1)
Address Input / Standalone Output Port (bit0) / Standalone strobe Input
Port
Interrupt Output / NSTUNLOC Flag Output for Standalone
Reset Input (Active Low)
nCS/SCM[4]
nWR/DIR/PO[7]
nRD/nDS/PO[6]
A[5:4]/PO[5:4]
A[3]/ALEPOL/PO[3]
A[2]/ALE/PO[2]
A[1]/PO[1]
A[0]/PO[0]]/nPOSTR
nINTR/NSTUNLOC
nRESET
1.5.2
Transceiver Interface Pins (5)
RXIN
TXEN
TXD
RXIN2
TXEN2
Port1 Receive Data Input
Port1 Transmit Enable Output
Transmit Data Output (Port1 & 2 Common)
Port2 Receive Data Input
Port2 Transmit Enable Output
SMSC TMC2074
Page 13
Revision 0.1 (03-29-06)
DATASHEET
SMSC [ SMSC CORPORATION ]
