LAN83C185_03 SMSC [SMSC Corporation], LAN83C185_03 Datasheet - Page 15

• Manufacturer Part Number: LAN83C185_03
• Description: High Performance Single Chip Low Power 10/100 Ethernet Physical Layer Transceiver
• Manufacturer: SMSC [SMSC Corporation]

High Performance Single Chip Low Power 10/100 Ethernet Physical Layer Transceiver (PHY)
Datasheet
SMSC LAN83C185
PIN NO.
PIN NO.
20
19
17
16
10
12
46
25
23
22
11
64
2
6
5
4
9
3
2
PHYAD4
PHYAD3
PHYAD2
PHYAD1
PHYAD0
MODE2
MODE1
MODE0
TEST1
TEST0
REG_EN
nINT
nRST
CLKIN/XTAL1
XTAL2
CLK_FREQ
NC1
GPO2
GPO1
SIGNAL NAME
SIGNAL NAME
Table 3.4 Configuration Inputs
Table 3.5 General Signals
I
I
I
I
I
I
I
I
I
I
I
I
I
O
I
O
O
OD
TYPE
TYPE
DATASHEET
PHY Address Bit 4: set the default address of the PHY.
PHY Address Bit 3: set the default address of the PHY.
PHY Address Bit 2: set the default address of the PHY.
PHY Address Bit 1: set the default address of the PHY.
PHY Address Bit 0: set the default address of the PHY.
PHY Operating Mode Bit 2: set the default MODE of the
PHY. See
page 42
PHY Operating Mode Bit 1: set the default MODE of the
PHY. See
page 42
PHY Operating Mode Bit 0: set the default MODE of the
PHY. See
page 42
Test Mode Select 1: Must be left floating.
Test Mode Select 0: Must be left floating.
Internal +1.8V Regulator Enable:
+3.3V – Enables internal regulator.
0V – Disables internal regulator.
LAN Interrupt – Active Low output.
External Reset – input of the system reset. This signal is
active LOW.
Clock Input – 25 MHz external clock or crystal input.
Clock Output – 25 MHz crystal output.
Clock Frequency – define the frequency of the input
clock CLKIN
0 – Clock frequency is 25 MHz.
1 – Reserved.
This input needs to be held low continuously, during and
after reset. This pin should be pulled-down to VSS via a
pull-down resistor.
No Connect
General Purpose Output 2 – General Purpose Output
signal Driven by bits in registers 27 and 31.
General Purpose Output 1 – General Purpose Output
signal Driven by bits in registers 27 and 31.
(Muxed with PHYAD4 signal)
7
for the MODE options.
for the MODE options.
for the MODE options.
Section 5.4.9.2, "Mode Bus – MODE[2:0]," on
Section 5.4.9.2, "Mode Bus – MODE[2:0]," on
Section 5.4.9.2, "Mode Bus – MODE[2:0]," on
DESCRIPTION
DESCRIPTION
Rev. 0.6 (12-12-03)