Micrel, Inc.
KSZ8041NL/RNL
Register Description (Continued)
Mode(1)
Address
Name
Description
Default
1f.10
Power Saving
1 = Enable power saving
0 = Disable power saving
RW
0
If power saving mode is enabled and the cable
is disconnected, the RXC clock output (in MII
mode) is disabled. RXC clock is enabled after
the cable is connected and link is established.
1f.9
1f.8
1f.7
Interrupt Level
Enable Jabber
1 = Interrupt pin active high
RW
RW
RW
0
1
0
0 = Interrupt pin active low
1 = Enable jabber counter
0 = Disable jabber counter
Auto-
Negotiation
Complete
1 = Auto-negotiation process completed
0 = Auto-negotiation process not completed
1f.6
Enable Pause
(Flow Control)
1 = Flow control capable
0 = No flow control capability
1 = PHY in isolate mode
0 = PHY in normal operation
[000] = still in auto-negotiation
[001] = 10Base-T half-duplex
[010] = 100Base-TX half-duplex
[011] = reserved
RO
RO
RO
0
1f.5
PHY Isolate
0
1f.4:2
Operation
Mode
Indication
000
[101] = 10Base-T full-duplex
[110] = 100Base-TX full-duplex
[111] = reserved
1f.1
1f.0
Enable SQE
test
1 = Enable SQE test
RW
RW
0
0
0 = Disable SQE test
Disable Data
Scrambling
1 = Disable scrambler
0 = Enable scrambler
Note:
1. RW = Read/Write.
RO = Read only.
SC = Self-cleared.
LH = Latch high.
LL = Latch low.
September 2010
39
M9999-090910-1.4
MICREL [ MICREL SEMICONDUCTOR ]
