LXT971A 3.3V Dual-Speed Fast Ethernet Transceiver
Table 8. LXT971A Pin Types and Modes
Tx/Rx
RXER
COL
CRS
TXD 0-3
Input
TXEN
Input
TXER
Input
Modes
RXD 0-3
RXDV
CLKS
Output Output Output
Output
HWReset
DL
DL
DH
DL
DL
DL
DL
DL
DL
IPLD
IPLD
IPLD
SFTPWRDN DL
DL
Active
High Z
IPLD
IPLD
IPLD
HWPWRDN
ISOLATE
SLEEP
High Z
High Z
High Z High Z High Z
High Z
High Z
High Z
HZ w/
IPLD
HZ w/
IPLD
HZ w/
IPLD
HZ w/
IPLD
HZ w/
IPLD
HZ w/
IPLD
IPLD
IPLD
IPLD
DL
DL
DL
DL
DL
DL
IPLD
IPLD
IPLD
1. A High Z (High impedance) or three-state determines when the device is drawing a current of less than
20 nA. A High Z with PLD (High impedance with pull-down) state determines when the device is drawing a
current of less than 20 µA.
2. DL = Driven Low (Logic 0), DH = Driven High (Logic 1), IPLD = Internal Pull-Down (Weak)
20
Datasheet
Document #: 249414
Revision #: 002
Rev. Date: August 7, 2002
INTEL [ INTEL ]
