lan83c185 Standard Microsystems Corp., lan83c185 Datasheet - Page 13

• Manufacturer Part Number: lan83c185
• Description: Lan83c185 High Performance Single Chip Low Power 10/100 Physical Layer Transceiver Phy
• Manufacturer: Standard Microsystems Corp.

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
64
11
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
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OD
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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 46
PHY Operating Mode Bit 1: set the default MODE of the
PHY. See
page 46
PHY Operating Mode Bit 0: set the default MODE of the
PHY. See
page 46
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.
13
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)
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
Revision 0.8 (06-12-08)