Product Brief
ICS1893AF
ICS1893AF Pin Descriptions
(Cont’d.)
Configuration Pins
Signal Name
10/100
100TCSR
10TCSR
REFIN
REFOUT
RESETn
Pin No
9
16
15
47
46
22
Signal Description
Output Indication , High=100baseTX Operation
100M Transmit Current Set Resistors (see Figure)
10M Transmit Current Set Resistor
Frequency Reference Input: 25 MHz Input Clock or Crystal
Frequency Reference Output for Crystal
System Reset (active low)
MAC/Repeater Interface Pins
Signal Name
MDIO
MDC
RXD3
RXD2
RXD1
RXD0
RXDV
RXCLK
RXER
Pin No.
26
27
28
29
30
31
32
34
35
Signal Description
Management Data Input/Output
Management Data Clock
Receive Data 3
Receive Data 2
Receive Data 1
Receive Data 0
Receive Data Valid
Receive Clock
Receive Error
TXCLK
TXEN
TXD0
TXD1
TXD2
TXD3
COL
CRS
37
38
39
40
41
42
43
44
Transmit Clock
Transmit Enable
Transmit Data 0
Transmit Data 1
Transmit Data 2
Transmit Data 3
Collision Detect
Carrier Sense
Page 5
Document Revision: 5 April 2002
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