Datasheet

 2016 Microchip Technology Inc. DS00002246A-page 85
KSZ8895MQX/RQX/FQX/MLX
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
6Adv 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 Vct_enable
1 = Enable cable diagnostic. After VCT test has com-
pleted, this bit will be self-cleared.
0 = Indicate cable diagnostic test (if enabled) has com-
pleted and the status information is valid for read.
R/W
(SC)
0
14 - 13 Vct_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
Vct 10M
Short
1 = Less than 10 meter short RO 0
11 - 9 Reserved — RO 0
8 - 0
Vct_-
fault_count
Distance to the fault.
It is approximately 0.4m x vct_fault_count[8:0]
RO 000000000
Register 1fh: PHY Special Control/Status
15 - 11 Reserved — RO 00000
10 - 8
Port Opera-
tion 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 000
7 - 6 Reserved N/A Do not change R/W 00
5Polrvs
1 = Polarity is reversed.
0 = Polarity is not reversed.
RO 0
4 MDI-X status
1 = MDI
0 = MDI-X
RO 0
3 Force_link
1 = Force link pass.
0 = Normal operation.
R/W 0
2Pwrsave
1 = Enable power save.
0 = Disable power save.
R/W 0
TABLE 4-12: MIIM REGISTERS (CONTINUED)
Address Name Description Mode Default