Specifications

Micrel, Inc.
KSZ8895MQ/RQ/FMQ
Pin for Strap-In Options (Continued)
Pin # Pin Name PU/PD
(1)
Description
(1)
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 Fulld
86 SCONF1 IPD
Pin 91,86,87 are dual MII/RMII configuration pins for the Port 5 MAC 5 MII/RMII
and PHY[5] MII/RMII. SW5-MII supports both MAC mode and PHY modes. P5-
MII supports PHY mode only. See pins configuration below.
Pins [91, 86, 87]
Port 5 MAC 5 Switch
SW5-MII
Port 5 PHY [5]
MII/RMII P5-MII/RMII
000 Disable, Otri Disable, Otri
001 PHY Mode MII or RMII Disable, Otri
010 MAC Mode MII or RMII Disable, Otri
011 PHY Mode SNI Disable, Otri
100 Disable Disable
101 PHY Mode MII or RMII P5- MII/RMII
110 MAC Mode MII or RMII P5- MII/RMII
111 PHY Mode SNI P5- MII/RMII
87 SCONF0 IPD Dual MII/RMII configuration pin. See pin 86 description.
90 LED5-2 IPU/O
LED5 indicator 2.
Strap option: Aging setup. See “Aging” section
PU (default) = aging enable;
PD = aging disable.
91 LED5-1 IPU/O
LED5 indicator 1.
Strap option:
PU (default): enable PHY[5] MII I/F.
PD: tristate all PHY[5] MII output. See “Pin 86 SCONF1.”
92 LED5-0 IPU/O
LED5 indicator 0.
Strap option for Port 4 only.
PU (default) = Enable auto-negotiation.
PD = Disable auto-negatiation. Strap to register76 bit[7].
95 LED4-0 IPU/O
LED indicator 0.
Strap option:
PU (default) = Normal mode.
PD = Energy Detection mode (EDPD mode).
Strap to register 14 bits[4:3].
98 LED3-0 IPU/O
LED3 indicator 0.
Strap option:
PU (default) = Select I/O current drive strength (8mA);
PD = Select I/O current drive strength (12mA).
Strap to register132 bit[7:6].
March 12, 2014
24
Revision 1.7