ICS1894-34
10BASE-T/100BASE-TX INTEGRATED PHYCEIVER WITH MII INTERFACE PHYCEIVER
IDT®
10BASE-T/100BASE-TX INTEGRATED PHYCEIVER WITH MII INTERFACE 4
ICS1894-34 REV B 052112
Notes:
1. AIO: Analog input/output PAD.
IO: Digital input/output.
IN/Ipu: Digital input with internal 20k pull-up.
IN/Ipd: Digital input with internal 20k pull-down.
IO/Ipu: Digital input/output with internal 20k pull-up.
IO/Ipd: Digital input/output with internal 20k pull-down.
2. MII Rx Mode: The RXD[3..0] bits are synchronous with RXCLK. When RXDV is asserted, RXD[3..0] presents
valid data to MAC on the MII interface. RXD[3..0] is invalid when RXDV is de-asserted.
3. MII Tx Mode: The TXD[3..0] bits are synchronous with TXCLK. When TXEN is asserted, TXD[3..0] presents valid
data from the MAC on the MII interface. TXD[3..0] has no effect when TXEN is de-asserted.
31 P0/LED0 IO PHY address Bit 0 as input (during power on reset/hardware reset) and LED # 0
(function configurable, default is "activity/no activity") as output
32 P1/ISO/LED1 IO PHY address Bit 1 as input (during power on reset/hardware reset) and LED # 1
(function configurable, default is "10/100 mode") as output; After latch, alternates as
a real time receiver isolation input.
PADDLE VSS Ground Connect to ground.
Pin
Number
Pin
Name
Pin
Type
1
Pin Description
