Micrel, Inc.
KS8993F/FL
Revision History
Revision
P0
P1
Date
1/14/03
2/11/03
Summary of Changes
Preliminary Information
Added separate Link and activity on port 1 and port 2’s LED (pin #20, pin #23, pin
#25).
Added disable auto MDI/MDIX (pin #28)
Added select of MDI and MDIX (pin #29)
Updated register information
Started overhaul of datasheet.
Updated strap option definition for pin #85.
Renamed supply voltages and ground references to match schematics.
Corrected Remote Loop back path.
Updated MC registers descriptions.
Changed 3.3V voltage pins to (3.3V or 2.5V).
Completed overhaul of datasheet.
Revised datasheet format.
Updated KS8993F block diagram.
Updated Feature Highlights.
Updated MC registers descriptions.
Updated Electrical Characteristics (Vih, Vil, Voh, Vol).
Updated MC loop back description in pin #19 and register 11 bits[3:2], and path in
loop back diagram.
Updated flow diagram for Destination Address resolution flowchart, stage2.
Changed S10 status bit from RO to R/W in register 81 bit[2].
Added KS8993FL to General Description (page 1) and Functional Description
Overview (section 2.1).
Updated pin description for pin 22 to the following:
VDDC : For KS8993F, this is an input power pin for the 1.8V digital core VDD.
VOUT_1V8 : For KS8993FL, this is an 1.8V output power pin to supply the
KS8993FL’s input power pins: VDDAP (pin 63),
VDDC (pins 91, 123) and VDDA (pins 38, 43, 57).
Improved/clarified pin description.
Updated PPM spec for 25 MHz crystal/oscillator.
Improved/clarified pin description for P1LCRCD (pin 18), P2MDIX (pin 29) and MDIO
(pin 95).
Corrected aging time.
Removed loop back support from MIIM and Port Control Registers, so that there is no
confusion with MC loop back which is used exclusively in KS8993F application.
Updated HWPOVR description in section 2.2.5.
Corrected default definition for FEF in section 2.3.6, and MIIM and Port Control
Registers.
Added register note to indicate port sniffing is not supported if the unicast packets can
cross VLAN boundary bit is set.
Improved/clarified switch/PHY registers descriptions for Force MDIX and CRC drop.
Improved/clarified MC registers descriptions for Remote Command (registers 74, 75,
76), My Status (registers 80, 81) and LNK Partner Status (registers 88, 89).
Added register note to set Register 85: My Model Info (1) to values of 0x22, 0x26,
0x2A and 0x2E if the Remote Command feature is used.
Updated MIB counters descriptions to indicate counter overflow must be tracked by
application.
Corrected VDDIO, VDDATX, VDDARX supply pins to 3.3V only.
Updated reset timing requirement.
Corrected 10BASE-T Transmitter Jitters Added.
Removed Industrial Temperature line from Features and Ordering info.
Add the parts KSZ8993F, KSZ8993FL on the order information
P2
P3
4/1/03
12/4/03
P4
3/11/04
P5
3/23/04
1.0
8/26/04
1.1
4/7/05
1.2
1.3
5/22/06
6/25/09
June 2009
3
M9999-062509
hbwhelp@micrel.com
or (408) 955-1690
MICREL [ MICREL SEMICONDUCTOR ]
