Specifications

Micrel, Inc.

KSZ8895MQ/RQ/FMQ

Global Registers (Continued)

Address Name Description Mode Default

5 PLL Power Down

Pll power down enable:

1 = Enable

0 = Disable

R/W 0

4–3 Power Management Mode

Power management mode :

00 = Normal mode (D0)

01 = Energy Detection mode (D2)

10 = soft Power Down mode (D3)

11 = Power Saving mode (D1)

R/W

Pin LED[4][0]

strap option.

PD(0): Select

Energy detection

mode

PU(1): (default)

Normal mode

Note: LED[4][0]

has internal pull-

up.

2−0

Reserved N/A Do not change. RO 000

7–0 Go_sleep_time[7:0]

When the Energy Detect mode is on, this value is

used to control the minimum period that the no energy

event has to be detected consecutively before the

device enters the low power state. The unit is 20 ms.

The default of go_sleep time is 1.6 seconds (80Dec x

20ms).

R/W 01010000

March 12, 2014

Revision 1.7