Datasheet

 2016 Microchip Technology Inc. DS00002246A-page 9
KSZ8895MQX/RQX/FQX/MLX
33 RXM5 I 5 Physical receive signal - (differential).
34 GNDA GND — Analog ground.
35 TXP5 O 5 Physical transmit signal + (differential).
36 TXM5 O 5 Physical transmit signal - (differential).
37 VDDAT P — 3.3V analog V
DD
.
38 NC/FXSD3 IPD 3
FQX: This pin can be floating when port 3 is used as copper port
(default). Port 3 can be set to fiber mode by Register 239 bit [7], this
pin is used for fiber signal detect pin on Port 3 in Fiber mode.
MQX/RQX/MLX: no connection.
39 FXSD4 IPD 4
FQX: Fiber signal detect pin for Port 4.
MQX/RQX/MLX: no connection.
40 NC NC — No connection. Leave NC pin floating.
41 NC NC — No connection. Leave NC pin floating.
42 NC NC — No connection. Leave NC pin floating.
43 NC NC — No connection. Leave NC pin floating.
44 NC NC — No connection. Leave NC pin floating.
45 NC NC — No connection. Leave NC pin floating.
46 NC NC — No connection. Leave NC pin floating.
47 PWRDN_N IPU — Full-chip power down. Active low.
48 INTR_N OPU — Interrupt. This pin is Open-Drain output pin.
49 GNDD GND — Digital ground.
50 VDDC P — 1.2V digital core V
DD
.
51 PMTXEN IPD 5 PHY [5] MII/RMII transmit enable.
52 PMTXD3 IPD 5
MQX/FQX/MLX: PHY [5] MII transmit bit 3.
RQX: no connection for RMII.
53 PMTXD2 IPD 5
MQX/FQX/MLX: PHY [5] MII transmit bit 2.
RQX: no connection for RMII.
54 PMTXD1 IPD 5 PHY [5] MII/RMII transmit bit 1.
55 PMTXD0 IPD 5 PHY [5] MII/RMII transmit bit 0.
56 PMTXER IPD 5
MQX/FQX/MLX: PHY [5] MII transmit error.
RQX: no connection for RMII.
57
PMTXC/
PMREFCLK
I/O 5
MQX/FQX/MLX: Output PHY [5] MII transmit clock
RQX: Input PHY [5] RMII reference clock, 50 MHz ±50 ppm, the
50 MHz clock comes from PMRXC Pin 60.
58 GNDD GND — Digital ground.
TABLE 2-1: SIGNALS - KSZ8895MQX/RQX/FQX/MLX (CONTINUED)
Pin
Number
Pin
Name
Type,
Note
2-1
Port Pin Function, Note 2-2