Datasheet

 2018 Microchip Technology Inc. DS00002813A-page 21
KSZ8721BL/SL
4.10 Pause
1 = Pause function supported
0 = No pause function
RW 0
4.9 100BASE-T4
1 = T4 capable
0 = No T4 capability
RO 0
4.8 100BASE-TX Full-Duplex
1 = TX with full-duplex
0 = No TX full-duplex capability
RW
Set by
SPD100 &
DUPLEX
4.7 100BASE-TX
1 = TX capable
0 = No TX capability
RW
Set by
SPD100
4.6 10BASE-T Full-Duplex
1 = 10 Mbps with full-duplex
0 = No 10 Mbps full-duplex capability
RW
Set by
DUPLEX
4.5 10BASE-T
1 = 10 Mbps capable
0 = No 10 Mbps capability
RW 1
4.4:0 Selector Field
1 = 10 Mbps capable
0 = No 10 Mbps capability
RW 00001
TABLE 4-7: REGISTER 5H - AUTO-NEGOTIATION LINK PARTNER ABILITY
Bit Name Description Default Reference
5.15 Next page
1 = Next page capable
0 = No next page capability
RO 0
5.14 Acknowledge
1 = Link code word received from partner
0 = Link code word not yet received
RO 0
5.13 Remote Fault 1 = Remote fault detected; 0 = no remote fault RO0
5.12 Reserved — RO 0
5.11:10 Pause
5.10 5.11
0 0
No PAUSE
0 1
Asymmetric PAUSE (link partner)
1 0
Symmetric PAUSE
1 1
Symmetric & Asymmetric PAUSE (local device)
RO 0
5.9 100 BASE-T4
1 = T4 capable
0 = No T4 capability
RO 0
5.8 100BASE-TX Full-Duplex
1 = TX with full-duplex
0 = No TX full-duplex capability
RO 0
5.7 100BASE-TX
1 = TX capable
0 = No TX capability
RO 0
5.6 10BASE-T Full-Duplex
1 = 10 Mbps with full-duplex
0 = No 10 Mbps full-duplex capability
RO 0
5.5 10BASE-T
1 = 10 Mbps capable
0 = No 10 Mbps capability
RO 0
5.4:0 Selector Field [00001] = IEEE 802.3 RO 00001
TABLE 4-6: REGISTER 4H - AUTO-NEGOTIATION ADVERTISEMENT (CONTINUED)
Bit Name Description Default Reference