Mesa 4I66 User manual

4I66 MANUAL
PC104-PLUS 100BT MAC-SWITCH
V1.3

iii
Table of Contents
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
HARDWARE CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
PC104-PLUS SLOT SELECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
BOOT EPROM SOCKET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
ETHERNET ADDRESS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
CONNECTORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
CONNECTOR AND JUMPER LOCATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
ETHERNET RJ 45 CONNECTORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
LED STATUS INDICATORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
SWITCH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
DRIVERS ..................................................... 5
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

4I66 1
GENERAL
DESCRIPTION
The4I66isastackablePC/104-pluscardthatcombinesa100BaseTEthernetMAC
with a 4 port switch. The 4I66 makes it easy to connect multiple embedded system cards
withouttheawkwardpowerormechanicalproblemswithconsumertypeEthernetswitches.
The 4Ethernet ports support autonegotiation allowing connections withhalf and full
duplex, 10 and 100 BaseT devices plus Auto-MDIX, eliminating the need for crossover
cables.
The Ethernet MAC is a National Semiconductor DP83816 which has drivers
available for most operating systems. The switch has sufficient bandwidth to support full
duplex wire speed connections on all ports.

4I66 2
HARDWARE CONFIGURATION
GENERAL
Hardwaresetupjumperpositions assumethatthe4I66cardis orientedinanupright
position, that is, with the PC/104 connectors towards the person doing the configuration,
and the on card writing right-side-up.
PC104-PLUS SLOT NUMBER
The4I66cardmustbeassignedaslot numberbeforeuse.IndesktopPCIsystems,
the slot number is determined by the physical slot that the PCI card is inserted into. In
PC104-PLUS systems, all signals on the bus are the same for each card, so a method is
needed to differentiate each card. This is done with the slot number jumpers on the 4I66
card. 2 jumpers. W2 and W3 determine the 4I66 slot assignment. The following table
shown the jumper settings:
W2 W3 SLOT IRQ REQ/GNT NOTES
DOWN DOWN 0 A 0 DEFAULT
DOWN UP 1 B 1
UP DOWN 2 C 2
UP UP 3 D 2 SHARES SL2 REQ/GNT
MDIX ENABLE/DISABLE
The 4Ethernet ports of the 4I66support Auto MDI-X. When Auto MDI-X is enabled,
each Ethernet port automatically detects whether a crossover connection is required and
switches the ports transmit and receive pairs as needed. Sometimes this auto-switching
can interfere with proper operation of other connected hubs or switches so it can be
disabled. W4 controls the MDIX feature. When W4 is in the right hand position (default),
Auto MDI-X is enabled. When W4 is in the left hand position, Auto MDI-X is disabled.
BOOT EPROM
The 4I66 can accommodate a boot EPROM or Flash EEPROM. Socket U8 is
provided for the EPROM or flash EEPROM. The 4I66 will only support 3.3V ,32 pin
EPROM and Flash EEPROMs.
ETHERNET ADDRESS
The hexadecimal MAC address is printedona label on thefront edge of thePC/104
connector of the 4I66 card.

4I66 3
CONNECTORS
CONNECTOR LOCATIONS AND DEFAULT JUMPER POSITIONS

4I66 4
CONNECTORS
ETHERNET CONNECTOR
J2 through J5 are the RJ-45 Ethernet connectors. Notethat the Auto MDI-X feature
canswapthetransmitandreceivepairsifareversedconnectionis detected.Standardpin-
out is as follows:
PIN FUNCTION
1 XMIT+
2 XMIT-
3 RCV+
6 RCV-
LED STATUS INDICATORS
Status LEDS are provided behindeachRJ45 connector. LEDfunction is as follows:
GREEN LINK OK/ACTIVITY
YELLOW FULL DUPLEX/COLLISION
RED HIGH SPEED (100BaseT)

4I66 5
OPERATION
SWITCH
The 4I66 is basically an Ethernet interface and a 5 port switch on a single card. The
EthernetMAC connects on one of the 5 switch ports, leaving 4 free for the user. Since the
Ethernet MAC has a local Ethernet interface to its switch port, system software will only
see a standard Ethernet interface, so normal DP83816 drivers can be used.
DRIVERS
The Distribution disk supplied with the 4I66 has drivers for Windows
9X,NT,2K,CE,ME, DOS,Linux ,Vxworks and Netware. In addition the DP83815 chip used
on the 4I66 is supported by FreeBSD, NetBSD, OpenBSD, and QNX.

4I66 6
SPECIFICATIONS
MIN MAX
POWER SUPPLY 4.5V 5.5V
POWER CONSUMPTION:
ALL CHANNELS ACTIVE 100BT ---- 600 mA
ALL CHANNELS ACTIVE 10BT ---- 800 mA
IDLE ---- 450 mA
OPERATING TEMP. 0oC +70oC
OPERATING TEMP. (-I version) -40oC +85oC
OPERATION HUMIDITY 0 95% NON-CONDENSING