KS8995XA
Micrel, Inc.
M9999-051305
16
May 2005
Pin Number
Pin Name
Type(1)
Port
Pin Function(2)
82
SMRXD1
Ipd/O
Switch MII receive bit 1. Strap option: PD (default) = Switch MII in
100Mbps mode; PU = Switch MII in 10Mbps mode.
81
SMRXD2
Ipd/O
Switch MII receive bit 2. Strap option: PD (default) = Switch MII in full-
duplex mode; PU = Switch MII in half-duplex mode.
80
SMRXD3
Ipd/O
Switch MII receive bit 3. Strap option: PD (default) = Disable Switch MII
full-duplex flow control; PU = Enable Switch MII full-duplex flow control.
79
SMRXDV
Ipd/O
Switch MII receive data valid.
75
SMTXC
I/O
Switch MII transmit clock. PHY or MAC mode MII.
73
SMTXD0
Ipd
Switch MII transmit bit 0.
72
SMTXD1
Ipd
Switch MII transmit bit 1.
71
SMTXD2
Ipd
Switch MII transmit bit 2.
70
SMTXD3
Ipd
Switch MII transmit bit 3.
69
SMTXEN
Ipd
Switch MII transmit enable.
74
SMTXER
Ipd
Switch MII transmit error.
1
MDIXDIS
I
1-5
Disable auto MDI/MDI-X.
128
TEST2
Factory test pin.
118
TESTEN
Ipd
Factory test pin.
7
TXP1
O
1
Physical transmit signal + (differential).
13
TXP2
O
2
Physical transmit signal + (differential).
22
TXP3
O
3
Physical transmit signal + (differential).
28
TXP4
O
4
Physical transmit signal + (differential).
35
TXP5
O
5
Physical transmit signal + (differential).
8
TXM1
O
1
Physical transmit signal – (differential).
14
TXM2
O
2
Physical transmit signal – (differential).
23
TXM3
O
3
Physical transmit signal – (differential).
29
TXM4
O
4
Physical transmit signal – (differential).
36
TXM5
O
5
Physical transmit signal – (differential).
123
VDDAP
P
1.8V analog V
DD for PLL.
3
VDDAR
P
1.8V analog V
DD.
15
VDDAR
P
1.8V analog V
DD.
31
VDDAR
P
1.8V analog V
DD.
41
VDDAR
P
1.8V analog V
DD.
43
VDDAR
P
1.8V analog V
DD.
125
VDDAR
P
1.8V analog V
DD.
Notes:
1. P = Power supply.
I = Input.
O = Output.
I/O = Bidirectional.
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.
2. PU = Strap pin pull-up.
PD = Strap pull-down.