KSZ8895MQ-EVAL Datasheet, PDF (63/118 Pages) Micrel Semiconductor – Integrated 5-Port 10/100 Managed Ethernet Switch with MII/RMII Interface

Micrel, Inc.
KSZ8895MQ/RQ/FMQ
Global Registers (Continued)
Address Name
5
PLL Power Down
Description
Pll power down enable:
1 = Enable
0 = Disable
Power management mode :
00 = Normal mode (D0)
4–3
Power Management Mode 01 = Energy Detection mode (D2)
10 = soft Power Down mode (D3)
11 = Power Saving mode (D1)
2−0
Reserved
N/A Do not change.
Register 15 (0x0F): Power Down Management Control 2
When the Energy Detect mode is on, this value is
used to control the minimum period that the no energy
7–0
Go_sleep_time[7:0]
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).
Mode
Default
R/W
0
00
Pin LED[4][0]
strap option.
PD(0): Select
Energy detection
R/W mode
PU(1): (default)
Normal mode
Note: LED[4][0]
has internal pull-
up.
RO
000
R/W
01010000
January 22, 2013
63
Revision 1.6