Datasheet KS8995X (Microchip) - 9

KS8995X Micrel Pin Number Pin Name Type(1) 31 VDDAR P 32 RXP5 I 5 Physical receive signal + (differential) 33 RXM5 I 5 Physical receive signal -(differential) 34 GNDA Gnd 35 TXM5 O 5 Physical transmit signal -(differential) 36 TXP5 O 5 Physical transmit signal + (differential) 37 VDDAT P 38 FXSD5 I 5 Fiber signal detect/factory test pin 39 FXSD4 I 4 Fiber signal detect/factory test pin 40 GNDA Gnd 41 VDDAR P 42 GNDA Gnd 43 VDDAR P 44 GNDA Gnd 45 NC / MUX1 I No connect. Factory test pin. 46 NC / MUX2 I No connect. Factory test pin. 47 PWRDN_N Ipu 48 RESERVE/NC 49 GNDD Gnd 50 VDDC P 51 PMTXEN Ipd 5 PHY[5] MII transmit enable 52 PMTXD3 Ipd 5 PHY[5] MII transmit bit 3 53 PMTXD2 Ipd 5 PHY[5] MII transmit bit 2 54 PMTXD1 Ipd 5 PHY[5] MII transmit bit 1 55 PMTXD0 Ipd 5 PHY[5] MII transmit bit 0 56 PMTXER Ipd 5 PHY[5] MII transmit error 57 PMTXC O 5 PHY[5] MII transmit clock. PHY mode MII. 58 GNDD Gnd 59 VDDIO P 60 PMRXC O 5 PHY[5] MII receive clock. PHY mode MII. 61 PMRXDV Ipd/O 5 PHY[5] MII receive data valid 62 PMRXD3 Ipd/O 5 PHY[5] MII receive bit 3. Strap option: PD (default) = enable flow
control; PU = disable flow control. Port Pin Function
1.8V analog VDD Analog ground 2.5V analog VDD Analog ground
1.8V analog VDD
Analog ground
1.8V analog VDD
Analog ground Full-chip power down. Active low.
Reserved pin. No connect.
Digital ground
1.8V digital core VDD Digital ground
3.3/2.5V digital VDD for digital I/O circuitry Note:
1. P = Power supply
I = Input
O = Output
I/O = Bi-directional
Gnd = Ground
Ipu = Input w/internal pull-up
Ipd = Input w/internal pull-down
Ipd/O = Input w/internal pull-down during reset, output pin otherwise
Ipu/O = Input w/internal pull-up during reset, output pin otherwise
PU = Strap pin pull-up
PD = Strap pull-down
Otri = Output tristated December 2003 9 M9999-120403