Micrel KS8721BL/SL User manual

KS8721BL/SL Demo Board User Guide
Single 3.3V supply 10/100BaseTX/FX MII Physical Layer Transceiver
Preliminary - Rev 1.0 June’ 2004
MICREL, Inc. 1849 Fortune Drive, San Jose, CA 95131 USA
TEL [phone] FAX [phone] WEB HHTTP://WWW.MICREL.COMH
The information furnished by Micrel in this datasheet is believed to be accurate and reliable. However, no responsibility is assumed by Micrel for its use. Micrel
reserves the right to change circuitry and specifications at any time without notification to the customer. Micrel Products are not designed or authorized for use as
components in life support appliances, devices or systems where malfunction of a product can reasonably be expected to result in personal injury. Life support devices
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expected to result in a significant injury to the user. A Purchaser's use or sale of Micrel Products for use in life support appliances, devices or systems is at P
own risk and Purchaser agrees to fully indemnify Micrel for any damages resulting from such use or sale. urchaser's
©2003 Micrel Incorporated

KS8721BL/SL Demo Board User Guide Rev. 1.0
Table of contents
KS8721BL/SL Demo Board User Guide........................................................1
Introduction .....................................................................................................3
Features............................................................................................................3
Kit Contents.....................................................................................................3
Reference Documents......................................................................................3
Hardware Description......................................................................................4
LED indicators.................................................................................................4
Jumper setting..................................................................................................4
40-Pin MII Ports..............................................................................................5
Bill of Material ................................................................................................6
Appendix .........................................................................................................7
Revision History
Revision Date Change
User Guide 0.9 09/26/02 Preliminary Release
User Guide 1.0 06/10/04 Initial Release
Micrel Confidential Information @2003 Page 2

KS8721BL/SL Demo Board User Guide Rev. 1.0
Introduction
The KS8721BL/SL evaluation board is a single port 10/100 Base Transceiver with MII
interface.
The default settings of this demo board are documented in this manual, please see
“jumper setting section” of this manual.
This board is not intended for reference design nor manufacturing. Please contact Micrel
FAE for consultation of layout and other design issues.
Features
 Micrel KS8721BL/SL Single 3.3V supply 10/100BaseTX/FX Physical Layer
Transceiver
 RJ45 jacks for Ethernet LAN port
 1 MII (media independent Interface) connector for I/F with MAC controller
 4 LEDs to indicate the status and activities
 Micrel MIC5216-3.3BM5 or MIC5207-3.3BM5 Regulator to step down to 3.3V
 Jumpers for various configurations
Kit Contents
The KS8721BL/SL Evaluation kit includes the following:
 KS8721BL/SL Evaluation Board
 KS8721BL/SL Board User Guide
Reference Documents
KS8721BL/SL Data Sheet (contact Micrel/Kendin for latest datasheet)
KS8721BL/SL Schematics
KS8721BL/SL Schematics in OrCAD format
KS8721BL/SL Gerber file
MIC5216-3.3BM5 or MIC5207-3.3BM5 Datasheet
(The latest datasheet from www.micrel.com)
AN117 Application Note – Drop-in Replacement with KS8721B/BT
Micrel Confidential Information @2003 Page 3

KS8721BL/SL Demo Board User Guide Rev. 1.0
Hardware Description
J2
RJ45
T1 U2
Jumper BanK1 Jumper Bank2
LED0-3 J13,J14,J15,J16,J12,J10 J3,J4,J5,J6,J7,J8,J9,J11
KS8721BL/SL
MII Connector
Transformer
Fig-1 KS8721BL/SL Demo Board Layout
LED indicators
There are 4 LED to indicate the traffic activities.
 LED0 – “ON” is Link, “Toggle” is Activity
 LED1 – “ON” is 100 Base, “OFF” is 10 Base
 LED2 – “ON” is Full Duplex, “OFF” is Half Duplex
 LED3 – “ON” is Collision, “OFF” is no Collision
Jumper setting
KS8721BL/SL will read the following settings during power up or RESET stage.
 J3, J4, J5, J6 and J10 -- setup the PHY address at power up, the default is 00001
when J3 to J6 and J10 are open.
 J7, “SHORT” Enable PCS Loop back, default is “OPEN”.
 J11, “SHORT” Enable ISOLATE MII mode, all MII pins are high impedance, default is
“OPEN”.
 J12 – Open for normal operation, short for POWER DOWN mode, default is “OPEN”.
 J13 (LED0) – Factory test pin.
 J14 (LED1) – Open for 100 Base, short for 10 Base, default is “OPEN”.
 J15 (LED2) – Open Full Duplex, short Half Duplex, default is “OPEN”.
 J16* (LED3) – Open Auto negotiation, short for force mode, default is “OPEN”.
* Even at Auto-negotiation mode (J16), the max advertised capability is set by J14. J15.
Micrel Confidential Information @2003 Page 4

KS8721BL/SL Demo Board User Guide Rev. 1.0
40-Pin MII Ports
Table lists the pinouts for the 40-pin MII Fast Ethernet ports.
Pin Signal Pin Signal
1 +5V 21 +5V
2 MDIO 22 Common
3 MDC 23 Common
4 RxD<3> 24 Common
5 RxD<2> 25 Common
6 RxD<1> 26 Common
7 RxD<0> 27 Common
8 Rx_DV 28 Common
9 Rx_Clk 29 Common
10 Rx_Er 30 Common
11 Tx_Er 31 Common
12 Tx_Clk 32 Common
13 Tx_En 33 Common
14 TxD<0> 34 Common
15 TxD<1> 35 Common
16 TxD<2> 36 Common
17 TxD<3> 37 Common
18 Col 38 Common
19 CRS 39 Common
20 +5V 40 +5V
Micrel Confidential Information @2003 Page 5

KS8721BL/SL Demo Board User Guide Rev. 1.0
Bill of Material
Description Quantity Reference designator Manufacturer Part Number
10/100 BaseTX/FX PHY 1 U2 Micrel KS8721BL or
KS8721SL
Low Noise µCap LDO 2 U1 Micrel MIC5216-3.3BM5 or
MIC5207-3.3BM5
Crystal 25MHZ 1 Y1 Dig-Key or
Equiv. SE3441
Cap 47UF 3 C2,C7,C23 Dig-Key or
equiv.
Cap 0.1UF 12 C4, C8, C10, C13, C14,
C15, C16, C17, C18, C19,
C21, C22
Dig-Key or
equiv.
.
Cap 100 UF 1 C6 Dig-Key or
equiv.
Cap 10uF 2 C9, C26 Dig-Key or
equiv.
Cap 22PF 2 C11, C12 Dig-Key or
equiv.
Cap 1000Pf/2KV 1 C20 Dig-Key or
equiv.
Cap 0.01UF 1 C24 Dig-Key or
equiv.
Diode 1N4148 1 D1 Dig-Key or
equiv.
FBEAD 2 FB1, FB2 Steward HI1206N101R-00
HEADER 1x1 1 TP1 Dig-Key or
equiv.
JUMPER 12
J3, J4, J5, J6, J7, J10, J11,
J12, J13, J14, J15, J16 Dig-Key or equiv.
RJ45 Jack 1 J2 Dig-Key or
equiv.. A9095-ND
Male MII connector 1 J1 AMP Inc.
LEDx3 3 LED1, LED2, LED3 Dig-Key or
equiv.
Resistor 10K 2 R1, R20 Dig-Key or
equiv.
Resistor 33 9 R3, R4, R8, R9, R10, R11,
R12, R14, R15 Dig-Key or equiv.
Resistor 49.9 1% 4 R6, R7, R32, R33 Dig-Key or
equiv.
Resistor 6.49K 1% 1 R13 Dig-Key or
equiv.
Resistor 3K 1 R16 Dig-Key or
equiv.
Micrel Confidential Information @2003 Page 6

KS8721BL/SL Demo Board User Guide Rev. 1.0
Resistor 75 4 R17, R18, R26, R39 Dig-Key or
equiv.
Resistor 1K 3 R21, R22, R23 Dig-Key or
equiv.
Resistor 220 4 R27, R28, R29, R31 Dig-Key or
equiv.
Resistor 4.7K 7 R40, R41, R42, R43, R44,
R47, R50 Dig-Key or equiv.
Transformer 1 T1 Pulse H1102
Appendix
KS8721BL/SL Evaluation Board Schematics Rev 1.1
Micrel Confidential Information @2003 Page 7

5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
REVISION HISTORY
DESCRIPTIONDATE: REVISION
1.0INITIAL RELEASEJuly/08/03
Micrel Ethernet
KS8721BL/SL
Demo Board
Schematics
Sept/23/03 Change the part number to KS8721BL/SL 1.1
1849 Fortune Dr. San Jose, CA. 95131
http://www.micrel.com
Change description on MIC5216 and MIC5207
1.1
KS8721BL/SL Demo Board
B
12
Title
Size Document Number Rev
Date: Sheet of

5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
REVERSE MII
Transpower HB726
Pulse H1102
Bel fuse S558-5999-U7
YCL PT163020
LINK/ACT
SPEED
DUPLEX
COLLISION
Note 1:
R6, R7, R32 and R33 should
be placed close to
KS8721BL/SL
OR
MIC5207-3.3BM5
MIC5216 in 500mA install R2 100K, do not install C21
MIC5207 is 180mA install C21, do not install R2 100K
Place close to
pin 13. VDDC
Place close to
pin 38. VDDRCV
1849 Fortune Dr. San Jose, CA. 95131
http://www.micrel.com
1.1B
22
KS8721BL/SL Demo Board
Title
Size Document Number Rev
Date: Sheet of
RXD3
RXD2
RXD1
RXD0
RXDV
RCLK
TCLK
COL
CRS
TXD3
TXEN
TXD0
TXD2
COL1
CRS1
MRXD2
MRXD2
MRXD3
MRXD3
MRXD1
MRXD1
MRXD0
MRXD0
TXD1
INT
INT
TXER
RXDV1
RXDV1
MDIO
MDC
VCC
V2.5A
V2.5A
V2.5A
V2.5A
V2.5A
V2.5A
V2.5PLL
V2.5PLL
V3.3
V2.5
V3.3
V3.3
V3.3
V3.3
V2.5
V3.3
V3.3V3.3
V3.3
V3.3
V3.3
V2.5
V3.3
R6
49.9 1%
C21
0.1uf
C18
0.1uf
J10 JUMPER
R16 3K
J1
Male MII connector
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
VCC
MDIO
MDC
RXD3
RXD2
RXD1
RXD0
RX_DV
RX_CLK
RX_ER
TX_ER
TX_CLK
TX_EN
TXD0
TXD1
TXD2
TXD3
COL
CRS
VCC
VCC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
VCC
R7
49.9 1%
+ C6
100uf
C13
0.1uf
C8
0.1uf
C14
0.1uf
J13
JUMPER
R2 100K
R21
1K
U2
KS8721
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
2425
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48 MDIO
MDC
RXD3/PHYAD1
RXD2/PHYAD2
RXD1/PHYAD3
RXD0/PHYAD4
VDDI/O
GND
RXDV/CRSDV/PCS_LP
RXC
RXER/ISO
GND
VDDC
TXER
TXC/REF_CLK
TXEN
TXD0
TXD1
TXD2
TXD3
COL/RMII
CRS/RMII_LP
GND
VDDI/OINT#/PHYAD0
LED0/TEST
LED1/SPD100/noFEF
LED2/DUPLEX
LED3/NWAYEN
PD#
VDDRX
RX-
RX+
FXSD/FXEN
GND
GND
REXT
VDDRCV
GND
TX-
TX+
VDDTX
GND
GND
X0
X1
VDDPLL
RST#
C15
0.1uf
R3 33
C1
0.1
R22
1K
J14
JUMPER
C20
1000pf/2kv
C16
0.1uf
R4 33
C3
0.1
R8 33 R9 33
R23
1K
R10 33
J15
JUMPER
R11 33
R12 33
J2
CON8
1
2
3
4
5
6
7
8
R14 33
R15 33
J16
JUMPER
R20
1K
R44
4.7K
C9
10UF
R1
10K
Y1
25Mhz
R47
4.7K
R41
4.7K
D1
1N4148
1 2
U1
MIC5216-3.3BM5
1
3
2
4
5VIN
EN
GND
BYP
OUT
R42
4.7K
+
C23
47uf
R43
4.7K
R33
49.9 1%
R30 75
LED0 LED
12
R27 220
LED1 LED
12
R32
49.9 1%
J3 JUMPER
LED2 LED
12
R17 75
R28 220
LED3 LED
12
J4 JUMPER
J11 JUMPER
R26 75
J12
JUMPER
J5 JUMPER
R29 220
+ C26
10uf
R50
4.7K
C17
0.1uf
C24
0.01uf
J6 JUMPER
C12
22P
TP1
CON1
1
R31 220
+ C7
47uf
C11
22P
J7 JUMPER
C10
0.1uf
FB1
FBEAD
1 2
R18 75
T1 1
2
3
4
5
6
7
89
10
11
12
13
14
15
16 TD+
TC
TD-
NC
NC
RD+
RC
RD-RX-
RCM
RX+
NC
NC
TX-
TCM
TX+
+
C2
47uf
FB2
FBEAD
1 2
C4
0.1uf
R40
4.7K
C22
0.1uf
R13
6.49K 1%
C19
0.1uf