5 4 3 2 KSZ8851-16MLL (48-pin) Demo Board Black Diagram RJ45 LAN1 T STATUS LEDs EEPROM AT93C46 OSC 25 MHz Reset Crystal LED3 U3 (MIC5209YM) 07/07/10 Add Jumper (JP8) between VDD_IO and 1.8V Change the LED pulled up to 3.3V 1.1 C KSZ8851-16MLL Demo Board 8/16Bit Bus Schematic for Design Reference Header 20x2 JP 2/4/7 U1 KSZ8851 -16MLL T 1.0 LED2 JP 3/5/6 RJ-45 1st Demo Board Design MIC5209YM x 2 Reset B LED1 12/07/07 Power +1.8V +2.5V +3.3V DEMO BOARD PLACEMENT U2 (EEPROM) REVISION DESCRIPTION D KSZ8851-16MLL C REVISION HISTORY DATE: Headers 20x2 D 1 B Table of Contents Page 1: Revision History & Block Diagram Page 2: KSZ8851-16MLL 48-pin Ethernet Controller Chip 3.0" U5 (MIC5209YM) A A 3.5" MICREL SEMICONDUCTOR Title KSZ8851-16MLL DEMO BOARD MICREL SEMICONDUCTOR CONFIDENTIAL 5 4 3 2 Size B Document Number Cover and Revision History Date: Wednesday, July 07, 2010 Rev 1.1 Sheet 1 1 of 2 5 4 3 2 1 CMD held Low: Shared Data bus SD[15:0] is data bus D[15:0] VDD CMD held HIGH: Shared Data bus SD[7:0] is Address bus A[7:0] Shared Data bus SD[13:12] is Byte Enable BE[1:0] Shared Data bus SD[15:14], SD[11:8] are DON'T CARE TP1 1 2 C9 C10 C11 Vin_5.0V C8 4.7uF 4.7uF T1 49.9 C14 0.1uF 49.9 R4 16 RXP1 17 RXM1 19 TXP1 20 TXM1 8 9 RX1P 7 10 R3 6 11 RX1M 3 14 TX1P 2 15 R5 1 16 TX1M J1 RJ-45 Jack 75 1 2 3 4 5 6 7 8 75 R6 10 9 VDD_A3.3 R7 C15 C16 R8 75 Pulse H1102NL + 75 10uF 49.9 3.3V 0.1uF Digikey 399-3443-1-ND 1808 R9 2 1 P1LED0 P1LED1 15 10 9 EECS EESK EED_IO 22 R19 220 R11 220 R13 2 1 4 3 LEDSEL0 P1LED1 (bit9 in CGCR) 0 100BT 1 ACT P1LED0 C18 LINK/ACT LINK (LINK=LED ON) (ACT= LED Blink) (100BT=LED ON) LEDx2 Green LEDs 1000pF / 2kV SIGNAL_GND CHASSIS_GND Place SIGNAL_GND return of this cap close to SIGNAL_GND at 5V input power to board VDD U2 25MHZ Crystal 25 1 2 3 4 Y1 C21 1000pF / 2kV C 3.01K 1% R20 24 C17 LED1 49.9 0 AGND AGND C7 0.1uF 0.01uF C22 22PF CS SK DI DO VCC NC ORG GND 8 7 6 5 C20 0.1uF AT93C46 SO8 EN OUT 3 ADJ 4 R23 LED3 1.50K C25 + C27 R28 470pF 2.49K TANT 0.1uF GND GND GND GND C24 47uF 1 IN 5 6 7 8 TANT FBEAD C23 + 2 C6 + 0.1uF 3.3VA R2 MIC5209YM 2 C13 2 C5 FBEAD C4 D U3 1 C12 C3 + 3.3V FB4 B 1.8A 1 C2 + 4.7uF 0.1uF 0.01uF 4.7uF 0.1uF 0.1uF 0.1uF 22PF 5.0V_IN TP4 TP3 2 FBEAD 21 14 27 38 46 VDD_IO VDD_IO VDD_IO 13 18 7 26 28 37 DGND DGND DGND DGND CPU_RSTN 1.8V 0.1uF 2 1 C VDD_A1.8 CPU_D[15:0] CPU_WRN 3.3VA FB3 1 + C1 R1 CPU_INTRN VDD_CO1.8 VDD_D1.8 CPU_PME 8 29 SD[15:0] CPU_CSN TP2 FB2 CHASSIS_GND Series resistors 33 ohm are option and not necessary if to GND in 8-bit bus mode CPU is driving the bus to KSZ8851M at the same board 1.8V 1.8A VDD_IO 3.3VA JP1 RN1 1206 CPU_D0 SD0 1 8 1 2 CPU_D1 SD1 2 7 3 4 CPU_D14 CPU_D2 SD2 3 6 5 6 CPU_D12 CPU_D3 SD3 4 5 7 8 CPU_D10 9 10 CPU_D8 33 11 12 CPU_D6 RN2 1206 13 14 CPU_D4 CPU_D4 SD4 1 8 15 16 CPU_D2 CPU_D5 SD5 0 2 7 17 18 CPU_D0 CPU_D6 SD6 3 6 19 20 CPU_D7 SD7 4 5 21 22 CPU_RSTN 23 24 33 25 26 CPU_CMD U1 RN3 1206 27 28 CPU_D8 SD8 1 8 29 30 spare CPU_D9 SD9 SD0 2 7 48 31 32 SD0 RXP1 CPU_D10 SD10 SD1 3 6 47 SD1 33 34 CPU_RDN CPU_D11 SD11 SD2 4 5 45 SD2 35 36 RXM1 SD3 44 SD3 37 38 SD4 33 43 SD4 39 40 TXP1 SD5 RN4 1206 42 SD5 HEADER 20x2/SM CPU_D12 SD12 SD6 1 8 41 SD6 TXM1 CPU_D13 SD13 SD7 2 7 40 SD7 CPU_D14 SD14 SD8 3 6 39 SD8 CPU_D15 SD15 SD9 4 5 36 SD10 35 SD9 KSZ8851-16MLL VDD SD11 34 SD10 33 CPU_CMD SD12 33 SD11 33 SD12 SD13 32 R10 P1LED0 33 CPU_CSN SD14 31 SD13 P1LED1 SD15 30 SD14 R12 D1 SD15 33 R15 CPU_WRN CMD 11 CMD EECS R14 EESK CPU_RDN CSN 33 1N4148 12 CSN EED_IO 10K R16 WRN 6 WRN CPU_INTRN RDN 33 33 3.3V 5 RDN ISET R17 R18 INTRN 4 INTRN LED2 X1 S1 Reset PME 220 1 2 3 PME R21 RSTN 2 1 + C19 23 RSTN X2 PME ON (green LED) 4 3 33 CPU_PME 10uF R22 CPU_D15 CPU_D13 CPU_D11 CPU_D9 CPU_D7 CPU_D5 CPU_D3 CPU_D1 3.3V FBEAD 5.0V_IN Note: CPU_D[15:8] must tie D VDD_IO FB1 10uF C26 1 2 220 R25 Power 3.3V 0.1uF (red LED) RDN 4.7K R24 WRN 4.7K R26 CSN 4.7K R27 CMD 4.7K R29 INTRN 4.7K R30 U4 RXP1 1 D2 VDD RX1P 1 . . B . . 6 RXM1 2 RX1M GND GBLC03C_0 2 GND VR 5 3.3VA D3 TX1P 1 VOUT = 1.24 X [ 1 + ( 2.49k/ 1.5K ) ] VDD VDD . . 2 TX1M GBLC03C_0 TXP1 3 . . 4 TXM1 Vin_5.0V VDD is 3.3V if only JP3 is ON VDD is 2.5V if only JP5 is ON VDD is 1.8V if only JP6 is ON U5 A IN EN GND GND GND GND 1 OUT 3 ADJ 4 1.50K 2.46K 5.54K 5 6 7 8 2 5 C30 R37 470pF 2.49K R32 R34 R35 1 JP3 2 3.3V 1 JP5 2 2.5V 1 JP6 2 1.8V SRV05-4 EED_IO C29 10uF 1.8V 2 R31 4.7K EESK 1 JP4 P1LED1 1 JP7 2 R33 4.7K 2 R36 1K (Parts are not designed on this demo board) VDD_IO 0.1uF 1 JP8 A MICREL SEMICONDUCTOR 2 Strapping Options: JP8 -> ON: VDD_IO = 1.8V OFF: VDD_IO =2.5/3.3V 4 1 JP2 ESD protection is required for POE application C28 + TANT MIC5209YM JP2 (EED_IO) -> ON: EEPROM present; OFF: EEPROM not present JP4 (EESK) -> ON: Big Indian; OFF: Little Indian JP7 (P1LED1) -> ON: 8-bit mode; OFF: 16-bit mode 3 2 Title KSZ8851-16MLL 48-pin DEMO BOARD Size B Document Number KSZ8851-16MLL Date: Wednesday, July 07, 2010 Rev 1.1 Sheet 1 2 of 2