KS8995MA
Micrel, Inc.
M9999-051305
12
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.
83
SMRXD0
Ipd/O
Switch MII receive bit 0. Strap option: LED mode
PD (default) = mode 0; PU = mode 1. See “Register 11.”
Mode 0
Mode 1
LEDX_2
Lnk/Act
100Lnk/Act
LEDX_1
Fulld/Col
10Lnk/Act
LEDX_0
Speed
Full duplex
84
SCOL
Ipd/O
Switch MII collision detect.
85
SCRS
Ipd/O
Switch MII carrier sense.
86
SCONF1
Ipd
Dual MII configuration pin.
Pin (91, 86, 87):
Switch MII
PHY [5] MII
000
Disable, Otri
001
PHY Mode MII
Disable, Otri
010
MAC Mode MII
Disable, Otri
011
PHY Mode SNI
Disable, Otri
100
Disable
101
PHY Mode MII
110
MAC Mode MII
PHY Mode MII
111
PHY Mode SNI
PHY Mode MII
87
SCONF0
Ipd
Dual MII configuration pin.
88
GNDD
Gnd
Digital ground.
89
VDDC
P
1.8V digital core V
DD.
90
LED5-2
Ipu/O
5
LED indicator 2. Strap option: aging setup. See “Aging” section.
PU (default) = aging enable; PD = aging disable.
91
LED5-1
Ipu/O
5
LED indicator 1. Strap option: PU (default) = enable PHY MII I/F.
PD: tristate all PHY MII output. See “Pin 86 SCONF1.”
92
LED5-0
Ipu/O
5
LED indicator 0
93
LED4-2
Ipu/O
4
LED indicator 2
94
LED4-1
Ipu/O
4
LED indicator 1
95
LED4-0
Ipu/O
4
LED indicator 0
96
LED3-2
Ipu/O
3
LED indicator 2
97
LED3-1
Ipu/O
3
LED indicator 1
Note:
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.
NC = No connect.
2.
PU = Strap pin pull-up.
Otri = Output tristated.
PD = Strap pin pull-down.
Fulld = Full duplex.