Datasheet
Table Of Contents
- 1.0 Introduction
- 2.0 Pin Description and Configuration
- 3.0 Functional Description
- 3.1 10BASE-T/100BASE-TX Transceiver
- 3.2 RMII Interface
- 3.3 Back-to-Back Mode – 100 Mbps Copper Repeater
- 3.4 MII Management (MIIM) Interface
- 3.5 Interrupt (INTRP)
- 3.6 HP Auto MDI/MDI-X
- 3.7 Loopback Mode
- 3.8 LinkMD® Cable Diagnostic
- 3.9 NAND Tree Support
- 3.10 Power Management
- 3.11 Reference Circuit for Power and Ground Connections
- 3.12 Typical Current/Power Consumption
- 4.0 Register Descriptions
- 5.0 Operational Characteristics
- 6.0 Electrical Characteristics
- 7.0 Timing Diagrams
- 8.0 Reset Circuit
- 9.0 Reference Circuits — LED Strap-In Pins
- 10.0 Reference Clock - Connection and Selection
- 11.0 Magnetic - Connection and Selection
- 12.0 Package Outline
2016 Microchip Technology Inc. DS00002199A-page 5
KSZ8081RNA/RND
2.0 PIN DESCRIPTION AND CONFIGURATION
FIGURE 2-1: 24-QFN PIN ASSIGNMENT (TOP VIEW)
1
2
3
4
5
6
18
17
16
15
14
13
24 23
22
21
20
19
7
8
9
10
11
12
PADDLE GROUND
(ON BOTTOM OF CHIP)
VDD_1.2
VDDA_3.3
RXM
RXP
TXM
TXP
INTRP
RXER
REF_CLK
CRS_DV/
PHYAD[1:0]
VDDIO
RXD0
RST#
LED0 /
ANEN_SPEED
GND
TXD1
TXD0
TXEN
XO
XI
REXT
MDIO
MDC
RXD1