Datasheet

 2016-2017 Microchip Technology Inc. DS00002112B-page 111
KSZ8795CLX
4 - 0 Selector
Field
[00001] = IEEE 802.3 RO 00001
Register 5h: Link Partner Ability
15 Reserved — RO 0
14 Reserved — RO 0
13 Reserved — RO 0
12 - 11 Reserved — RO 0
10 Pause 1 = Link partner flow control capable.
0 = Link partner not flow control capable.
RO 0
9 Reserved — RO 0
8 Adv 100 Full 1 = Link partner 100BT full-duplex capable.
0 = Link partner not 100BT full-duplex capable.
RO 0
7 Adv 100 Half 1 = Link partner 100BT half-duplex capable.
0 = Link partner not 100BT half-duplex capable.
RO 0
6 Adv 10 Full 1 = Link partner 10BT full-duplex capable.
0 = Link partner not 10BT full-duplex capable.
RO 0
5 Adv 10 Half 1 = Link partner 10BT half-duplex capable.
0 = Link partner not 10BT half-duplex capable.
RO 0
4 - 0 Reserved — RO 00001
Register 1dh: LinkMD Control/Status
15 CDT_Enable 1 = Enable cable diagnostic. After CDT test has
completed, this bit will be self-cleared.
0 = Indicates cable diagnostic test (if enabled) has
completed and the status information is valid for
reading.
R/W
(SC)
0
14 - 13 CDT_Result 00 = Normal condition
01 = Open condition detected in cable
10 = Short condition detected in cable
11 = Cable diagnostic test has failed
RO 00
12 CDT 10M
Short
1 = Less than 10 meter short RO 0
11 - 9 Reserved — RO 0
8 - 0 CDT_-
Fault_Count
Distance to the fault, approximately 0.4m × CDT_-
Fault_Count[8:0]
RO 000000000
Register 1fh: PHY Special Control/Status
15 - 11 Reserved — RO 0000000000
10 - 8 Port
Operation
Mode
Indication
Indicate the current state of port operation mode:
000 = Reserved
001 = still in auto-negotiation
010 = 10BASE-T half duplex
011 = 100BASE-TX half duplex
100 = Reserved
101 = 10BASE-T full duplex
110 = 100BASE-TX full duplex
111 = PHY/MII isolate
RO 001
7 - 6 Reserved — RO 00
5 Polrvs 1 = Polarity is reversed
0 = Polarity is not reversed
RO 0
4 MDI-X Status 1 = MDI
0 = MDI-X
RO 0
TABLE 4-31: MIIM REGISTERS (CONTINUED)
Address Name Description Mode Default