Datasheet KS8995E (Microchip) - 8

KS8995E Micrel
Type(Note 1) Pin Number Pin Name 39 N/C 40 TXP[5] O 5 Physical transmit signal + (differential) 41 TXM[5] O 5 Physical transmit signal -(differential) 42 GND_TX[5] GND 5 Ground for transmit circuitry 43 VDD_TX[5] P 5 2.5V for transmit circuitry 44 FXSD[2] I 2 Fiber signal detect 45 FXSD[3] I 3 Fiber signal detect 46 FXSD[4] I 4 Fiber signal detect 47 FXSD[5] I 5 Fiber signal detect 48 GND_RCV[5] GND 5 Ground for clock recovery circuitry 49 VDD_RCV[5] P 5 2.5V for clock recovery circuitry 50 VDD_RCV[4] P 4 2.5V for clock recovery circuitry 51 GND_RCV[4] GND 4 Ground for clock recovery circuitry 52 GND_RCV[3] GND 3 Ground for clock recovery circuitry 53 VDD_RCV[3] P 3 2.5V for clock recovery circuitry 54 TEST[1] I Factory test pin – float for normal operation 55 TEST[2] I Factory test pin – float for normal operation 56 SCL O Clock for EEPROM 57 SDA I/O Serial data for EEPROM 58 VDD P 59 GND GND 60 MTXEN I 5 MII transmit enable 61 MTXD[3] I 5 MII transmit bit 3 62 MTXD[2] I 5 MII transmit bit 2 63 MTXD[1] I 5 MII transmit bit 1 64 MTXD[0] I 5 MII transmit bit 0 65 MTXER I 5 MII transmit error 66 MII_CLK O 5 MII clock 67 MRXDV O 5 MII receive data valid 68 MRXD[3] O 5 MII receive bit 3 69 MRXD[2] O 5 MII receive bit 2 70 MRXD[1] O 5 MII receive bit 1 71 MRXD[0] O 5 MII receive bit 0 72 MCOL O MII collision detect 73 VDD-IO P 2.5V or 3.3V for MII interface 74 GND GND 75 P5EXT I 5 External port 5 selector 76 P5SNI I 5 External port 5 mode selector Note 1. Port Pin Function
Not used -float for normal operation (no connect) 2.5V for core digital circuitry
Ground for digital circuitry Ground for digital circuitry P = power supply
GND = ground
I = input
O = output
I/O = bi-directional KS8995E 8 August 2003