KSZ8721SL Micrel Inc, KSZ8721SL Datasheet - Page 23

• Manufacturer Part Number: KSZ8721SL
• Description: IC TXRX PHY 10/100 3.3V 48-SSOP
• Manufacturer: Micrel Inc
• Type: Transceiverr

Specifications of KSZ8721SL

• Number Of Drivers/receivers: 1/1
• Protocol: IEEE 802
• Voltage - Supply: 3 V ~ 3.6 V
• Mounting Type: Surface Mount
• Package / Case: 48-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 576-1630 - BOARD EVALUATION FOR KSZ8721SL
• Lead Free Status / RoHS Status: Compliant, Lead free / RoHS Compliant
• Other names: 576-1031-5; 576-1512-5; 576-1512-5; KSZ8721SL

Micrel, Inc.
Note:
June 2009
Address
1b.3
1b.2
1b.1
1b.0
Register 1fh - 100BASE-TX PHY Controller
1f.15:14
1f.13
1f.12
1f.11
1f.10
1f.9
1f.8
1f.7
1f.6
1f.5
1f.4:2
1f.1
1f.0
1.
Some of the default values are set by strap-in. See “Strapping Options.”
RW = Read/Write.
RO = Read Only.
SC = Self Clear.
LH = Latch High.
LL = Latch Low.
Name
Link Partner
Acknowledge Interrupt
Link Down Interrupt
Remote Fault Interrupt
Link Up Interrupt
Reserved
Pairswap Disable
Energy Detect
Force Link
Power-Saving
Interrupt Level
Enable Jabber
Auto-Negotiation Complete
Enable Pause
(Flow-Control Result)
PHY Isolate
Operation Mode Indication
Enable SQE Test
Disable Data Scrambling
Description
1 = Link partner acknowledge occurred
0 = Link partner acknowledge has not occurred
1 = Link down occurred
0 = Link down has not occurred
1 = Remote fault occurred
0 = Remote fault has not occurred
1 = Link up interrupt occurred
0 = Link up interrupt has not occurred
1 = Disable MDI/MDI-X
0 = Enable MDI/MDI-X
1 = Presence of signal on RX+/RX- analog wire pair
0 = No signal detected on RX+/RX-
1 = Force link pass
0 = Normal link operation
This bit bypasses the control logic and allow transmitter to
send pattern even if there is no link.
1 = Enable power-saving
0 = Disable
1 = Interrupt pin active high
0 = Active low
1 = Enable jabber counter
0 = Disable
1 = Auto-negotiation complete
0 = Not complete
1 = Flow control capable
0 = No flow control
1 = PHY in isolate mode
0 = Not isolated
[000] = Still in auto-negotiation
[001] = 10BASE-T half-duplex
[010] = 100BASE-TX half-duplex
[011] = Reserved
[101] = 10BASE-T full-duplex
[110] = 100BASE-TX full-duplex
[111] = PHY/MII isolate
1 = Enable SQE test
0 = Disable
1 = Disable scrambler
0 = Enable
23
Default
RO/SC
RO/SC
RO/SC
RO/SC
RO
RW
RO
RW
RW
RW
RW
RW
RO
RO
RO
RW
RW
M9999-062509-1.3
(1)
KS8721BL/SL
Mode
0
0
0
0
0
0
0
0
1
0
1
0
0
0
0
0
0